81254720000

素因数分解:

$2^9\times 5^4\times {\mathrm{31}}^1\times {\mathrm{8191}}^1$

素因数の和:8260

約数の個数: 200

約数和(自身を含む): 209443356672

約数和(自身を除く): 128188636672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 400, 496, 500, 512, 620, 625, 640, 775, 800, 992, 1000, 1240, 1250, 1280, 1550, 1600, 1984, 2000, 2480, 2500, 2560, 3100, 3200, 3875, 3968, 4000, 4960, 5000, 6200, 6400, 7750, 7936, 8000, 8191, 9920, 10000, 12400, 12800, 15500, 15872, 16000, 16382, 19375, 19840, 20000, 24800, 31000, 32000, 32764, 38750, 39680, 40000, 40955, 49600, 62000, 64000, 65528, 77500, 79360, 80000, 81910, 99200, 124000, 131056, 155000, 160000, 163820, 198400, 204775, 248000, 253921, 262112, 310000, 320000, 327640, 396800, 409550, 496000, 507842, 524224, 620000, 655280, 819100, 992000, 1015684, 1023875, 1048448, 1240000, 1269605, 1310560, 1638200, 1984000, 2031368, 2047750, 2096896, 2480000, 2539210, 2621120, 3276400, 4062736, 4095500, 4193792, 4960000, 5078420, 5119375, 5242240, 6348025, 6552800, 8125472, 8191000, 9920000, 10156840, 10238750, 10484480, 12696050, 13105600, 16250944, 16382000, 20313680, 20477500, 20968960, 25392100, 26211200, 31740125, 32501888, 32764000, 40627360, 40955000, 50784200, 52422400, 63480250, 65003776, 65528000, 81254720, 81910000, 101568400, 104844800, 126960500, 130007552, 131056000, 158700625, 162509440, 163820000, 203136800, 253921000, 262112000, 317401250, 325018880, 327640000, 406273600, 507842000, 524224000, 634802500, 650037760, 655280000, 812547200, 1015684000, 1269605000, 1310560000, 1625094400, 2031368000, 2539210000, 2621120000, 3250188800, 4062736000, 5078420000, 8125472000, 10156840000, 16250944000, 20313680000, 40627360000, 81254720000]

約数ペア:

[(1, 81254720000), (2, 40627360000), (4, 20313680000), (5, 16250944000), (8, 10156840000), (10, 8125472000), (16, 5078420000), (20, 4062736000), (25, 3250188800), (31, 2621120000), (32, 2539210000), (40, 2031368000), (50, 1625094400), (62, 1310560000), (64, 1269605000), (80, 1015684000), (100, 812547200), (124, 655280000), (125, 650037760), (128, 634802500), (155, 524224000), (160, 507842000), (200, 406273600), (248, 327640000), (250, 325018880), (256, 317401250), (310, 262112000), (320, 253921000), (400, 203136800), (496, 163820000), (500, 162509440), (512, 158700625), (620, 131056000), (625, 130007552), (640, 126960500), (775, 104844800), (800, 101568400), (992, 81910000), (1000, 81254720), (1240, 65528000), (1250, 65003776), (1280, 63480250), (1550, 52422400), (1600, 50784200), (1984, 40955000), (2000, 40627360), (2480, 32764000), (2500, 32501888), (2560, 31740125), (3100, 26211200), (3200, 25392100), (3875, 20968960), (3968, 20477500), (4000, 20313680), (4960, 16382000), (5000, 16250944), (6200, 13105600), (6400, 12696050), (7750, 10484480), (7936, 10238750), (8000, 10156840), (8191, 9920000), (9920, 8191000), (10000, 8125472), (12400, 6552800), (12800, 6348025), (15500, 5242240), (15872, 5119375), (16000, 5078420), (16382, 4960000), (19375, 4193792), (19840, 4095500), (20000, 4062736), (24800, 3276400), (31000, 2621120), (32000, 2539210), (32764, 2480000), (38750, 2096896), (39680, 2047750), (40000, 2031368), (40955, 1984000), (49600, 1638200), (62000, 1310560), (64000, 1269605), (65528, 1240000), (77500, 1048448), (79360, 1023875), (80000, 1015684), (81910, 992000), (99200, 819100), (124000, 655280), (131056, 620000), (155000, 524224), (160000, 507842), (163820, 496000), (198400, 409550), (204775, 396800), (248000, 327640), (253921, 320000), (262112, 310000)]