254200000

素因数分解:

$2^6\times 5^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 168

約数和(自身を含む): 666707328

約数和(自身を除く): 412507328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 41, 50, 62, 64, 80, 82, 100, 124, 125, 155, 160, 164, 200, 205, 248, 250, 310, 320, 328, 400, 410, 496, 500, 620, 625, 656, 775, 800, 820, 992, 1000, 1025, 1240, 1250, 1271, 1312, 1550, 1600, 1640, 1984, 2000, 2050, 2480, 2500, 2542, 2624, 3100, 3125, 3280, 3875, 4000, 4100, 4960, 5000, 5084, 5125, 6200, 6250, 6355, 6560, 7750, 8000, 8200, 9920, 10000, 10168, 10250, 12400, 12500, 12710, 13120, 15500, 16400, 19375, 20000, 20336, 20500, 24800, 25000, 25420, 25625, 31000, 31775, 32800, 38750, 40000, 40672, 41000, 49600, 50000, 50840, 51250, 62000, 63550, 65600, 77500, 81344, 82000, 96875, 100000, 101680, 102500, 124000, 127100, 128125, 155000, 158875, 164000, 193750, 200000, 203360, 205000, 248000, 254200, 256250, 310000, 317750, 328000, 387500, 406720, 410000, 508400, 512500, 620000, 635500, 775000, 794375, 820000, 1016800, 1025000, 1240000, 1271000, 1550000, 1588750, 1640000, 2033600, 2050000, 2542000, 3100000, 3177500, 3971875, 4100000, 5084000, 6200000, 6355000, 7943750, 8200000, 10168000, 12710000, 15887500, 25420000, 31775000, 50840000, 63550000, 127100000, 254200000]

約数ペア:

[(1, 254200000), (2, 127100000), (4, 63550000), (5, 50840000), (8, 31775000), (10, 25420000), (16, 15887500), (20, 12710000), (25, 10168000), (31, 8200000), (32, 7943750), (40, 6355000), (41, 6200000), (50, 5084000), (62, 4100000), (64, 3971875), (80, 3177500), (82, 3100000), (100, 2542000), (124, 2050000), (125, 2033600), (155, 1640000), (160, 1588750), (164, 1550000), (200, 1271000), (205, 1240000), (248, 1025000), (250, 1016800), (310, 820000), (320, 794375), (328, 775000), (400, 635500), (410, 620000), (496, 512500), (500, 508400), (620, 410000), (625, 406720), (656, 387500), (775, 328000), (800, 317750), (820, 310000), (992, 256250), (1000, 254200), (1025, 248000), (1240, 205000), (1250, 203360), (1271, 200000), (1312, 193750), (1550, 164000), (1600, 158875), (1640, 155000), (1984, 128125), (2000, 127100), (2050, 124000), (2480, 102500), (2500, 101680), (2542, 100000), (2624, 96875), (3100, 82000), (3125, 81344), (3280, 77500), (3875, 65600), (4000, 63550), (4100, 62000), (4960, 51250), (5000, 50840), (5084, 50000), (5125, 49600), (6200, 41000), (6250, 40672), (6355, 40000), (6560, 38750), (7750, 32800), (8000, 31775), (8200, 31000), (9920, 25625), (10000, 25420), (10168, 25000), (10250, 24800), (12400, 20500), (12500, 20336), (12710, 20000), (13120, 19375), (15500, 16400)]