158720000

素因数分解:

$2^{13}\times 5^4\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 140

約数和(自身を含む): 409443936

約数和(自身を除く): 250723936

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, 1024, 1240, 1250, 1280, 1550, 1600, 1984, 2000, 2048, 2480, 2500, 2560, 3100, 3200, 3875, 3968, 4000, 4096, 4960, 5000, 5120, 6200, 6400, 7750, 7936, 8000, 8192, 9920, 10000, 10240, 12400, 12800, 15500, 15872, 16000, 19375, 19840, 20000, 20480, 24800, 25600, 31000, 31744, 32000, 38750, 39680, 40000, 40960, 49600, 51200, 62000, 63488, 64000, 77500, 79360, 80000, 99200, 102400, 124000, 126976, 128000, 155000, 158720, 160000, 198400, 204800, 248000, 253952, 256000, 310000, 317440, 320000, 396800, 496000, 512000, 620000, 634880, 640000, 793600, 992000, 1024000, 1240000, 1269760, 1280000, 1587200, 1984000, 2480000, 2560000, 3174400, 3968000, 4960000, 5120000, 6348800, 7936000, 9920000, 15872000, 19840000, 31744000, 39680000, 79360000, 158720000]

約数ペア:

[(1, 158720000), (2, 79360000), (4, 39680000), (5, 31744000), (8, 19840000), (10, 15872000), (16, 9920000), (20, 7936000), (25, 6348800), (31, 5120000), (32, 4960000), (40, 3968000), (50, 3174400), (62, 2560000), (64, 2480000), (80, 1984000), (100, 1587200), (124, 1280000), (125, 1269760), (128, 1240000), (155, 1024000), (160, 992000), (200, 793600), (248, 640000), (250, 634880), (256, 620000), (310, 512000), (320, 496000), (400, 396800), (496, 320000), (500, 317440), (512, 310000), (620, 256000), (625, 253952), (640, 248000), (775, 204800), (800, 198400), (992, 160000), (1000, 158720), (1024, 155000), (1240, 128000), (1250, 126976), (1280, 124000), (1550, 102400), (1600, 99200), (1984, 80000), (2000, 79360), (2048, 77500), (2480, 64000), (2500, 63488), (2560, 62000), (3100, 51200), (3200, 49600), (3875, 40960), (3968, 40000), (4000, 39680), (4096, 38750), (4960, 32000), (5000, 31744), (5120, 31000), (6200, 25600), (6400, 24800), (7750, 20480), (7936, 20000), (8000, 19840), (8192, 19375), (9920, 16000), (10000, 15872), (10240, 15500), (12400, 12800)]