155350000

素因数分解:

$2^4\times 5^5\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 406848960

約数和(自身を除く): 251498960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 239, 250, 260, 325, 400, 478, 500, 520, 625, 650, 956, 1000, 1040, 1195, 1250, 1300, 1625, 1912, 2000, 2390, 2500, 2600, 3107, 3125, 3250, 3824, 4780, 5000, 5200, 5975, 6214, 6250, 6500, 8125, 9560, 10000, 11950, 12428, 12500, 13000, 15535, 16250, 19120, 23900, 24856, 25000, 26000, 29875, 31070, 32500, 40625, 47800, 49712, 50000, 59750, 62140, 65000, 77675, 81250, 95600, 119500, 124280, 130000, 149375, 155350, 162500, 239000, 248560, 298750, 310700, 325000, 388375, 478000, 597500, 621400, 650000, 746875, 776750, 1195000, 1242800, 1493750, 1553500, 1941875, 2390000, 2987500, 3107000, 3883750, 5975000, 6214000, 7767500, 9709375, 11950000, 15535000, 19418750, 31070000, 38837500, 77675000, 155350000]

約数ペア:

[(1, 155350000), (2, 77675000), (4, 38837500), (5, 31070000), (8, 19418750), (10, 15535000), (13, 11950000), (16, 9709375), (20, 7767500), (25, 6214000), (26, 5975000), (40, 3883750), (50, 3107000), (52, 2987500), (65, 2390000), (80, 1941875), (100, 1553500), (104, 1493750), (125, 1242800), (130, 1195000), (200, 776750), (208, 746875), (239, 650000), (250, 621400), (260, 597500), (325, 478000), (400, 388375), (478, 325000), (500, 310700), (520, 298750), (625, 248560), (650, 239000), (956, 162500), (1000, 155350), (1040, 149375), (1195, 130000), (1250, 124280), (1300, 119500), (1625, 95600), (1912, 81250), (2000, 77675), (2390, 65000), (2500, 62140), (2600, 59750), (3107, 50000), (3125, 49712), (3250, 47800), (3824, 40625), (4780, 32500), (5000, 31070), (5200, 29875), (5975, 26000), (6214, 25000), (6250, 24856), (6500, 23900), (8125, 19120), (9560, 16250), (10000, 15535), (11950, 13000), (12428, 12500)]