158642500

素因数分解:

$2^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:167

約数の個数: 120

約数和(自身を含む): 377879040

約数和(自身を除く): 219236540

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 31, 46, 50, 62, 89, 92, 100, 115, 124, 125, 155, 178, 230, 250, 310, 356, 445, 460, 500, 575, 620, 625, 713, 775, 890, 1150, 1250, 1426, 1550, 1780, 2047, 2225, 2300, 2500, 2759, 2852, 2875, 3100, 3565, 3875, 4094, 4450, 5518, 5750, 7130, 7750, 8188, 8900, 10235, 11036, 11125, 11500, 13795, 14260, 14375, 15500, 17825, 19375, 20470, 22250, 27590, 28750, 35650, 38750, 40940, 44500, 51175, 55180, 55625, 57500, 63457, 68975, 71300, 77500, 89125, 102350, 111250, 126914, 137950, 178250, 204700, 222500, 253828, 255875, 275900, 317285, 344875, 356500, 445625, 511750, 634570, 689750, 891250, 1023500, 1269140, 1279375, 1379500, 1586425, 1724375, 1782500, 2558750, 3172850, 3448750, 5117500, 6345700, 6897500, 7932125, 15864250, 31728500, 39660625, 79321250, 158642500]

約数ペア:

[(1, 158642500), (2, 79321250), (4, 39660625), (5, 31728500), (10, 15864250), (20, 7932125), (23, 6897500), (25, 6345700), (31, 5117500), (46, 3448750), (50, 3172850), (62, 2558750), (89, 1782500), (92, 1724375), (100, 1586425), (115, 1379500), (124, 1279375), (125, 1269140), (155, 1023500), (178, 891250), (230, 689750), (250, 634570), (310, 511750), (356, 445625), (445, 356500), (460, 344875), (500, 317285), (575, 275900), (620, 255875), (625, 253828), (713, 222500), (775, 204700), (890, 178250), (1150, 137950), (1250, 126914), (1426, 111250), (1550, 102350), (1780, 89125), (2047, 77500), (2225, 71300), (2300, 68975), (2500, 63457), (2759, 57500), (2852, 55625), (2875, 55180), (3100, 51175), (3565, 44500), (3875, 40940), (4094, 38750), (4450, 35650), (5518, 28750), (5750, 27590), (7130, 22250), (7750, 20470), (8188, 19375), (8900, 17825), (10235, 15500), (11036, 14375), (11125, 14260), (11500, 13795)]