20045540000

素因数分解:

$2^5\times 5^4\times {\mathrm{367}}^1\times {\mathrm{2731}}^1$

素因数の和:3128

約数の個数: 120

約数和(自身を含む): 49467515328

約数和(自身を除く): 29421975328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 367, 400, 500, 625, 734, 800, 1000, 1250, 1468, 1835, 2000, 2500, 2731, 2936, 3670, 4000, 5000, 5462, 5872, 7340, 9175, 10000, 10924, 11744, 13655, 14680, 18350, 20000, 21848, 27310, 29360, 36700, 43696, 45875, 54620, 58720, 68275, 73400, 87392, 91750, 109240, 136550, 146800, 183500, 218480, 229375, 273100, 293600, 341375, 367000, 436960, 458750, 546200, 682750, 734000, 917500, 1002277, 1092400, 1365500, 1468000, 1706875, 1835000, 2004554, 2184800, 2731000, 3413750, 3670000, 4009108, 5011385, 5462000, 6827500, 7340000, 8018216, 10022770, 10924000, 13655000, 16036432, 20045540, 25056925, 27310000, 32072864, 40091080, 50113850, 54620000, 80182160, 100227700, 125284625, 160364320, 200455400, 250569250, 400910800, 501138500, 626423125, 801821600, 1002277000, 1252846250, 2004554000, 2505692500, 4009108000, 5011385000, 10022770000, 20045540000]

約数ペア:

[(1, 20045540000), (2, 10022770000), (4, 5011385000), (5, 4009108000), (8, 2505692500), (10, 2004554000), (16, 1252846250), (20, 1002277000), (25, 801821600), (32, 626423125), (40, 501138500), (50, 400910800), (80, 250569250), (100, 200455400), (125, 160364320), (160, 125284625), (200, 100227700), (250, 80182160), (367, 54620000), (400, 50113850), (500, 40091080), (625, 32072864), (734, 27310000), (800, 25056925), (1000, 20045540), (1250, 16036432), (1468, 13655000), (1835, 10924000), (2000, 10022770), (2500, 8018216), (2731, 7340000), (2936, 6827500), (3670, 5462000), (4000, 5011385), (5000, 4009108), (5462, 3670000), (5872, 3413750), (7340, 2731000), (9175, 2184800), (10000, 2004554), (10924, 1835000), (11744, 1706875), (13655, 1468000), (14680, 1365500), (18350, 1092400), (20000, 1002277), (21848, 917500), (27310, 734000), (29360, 682750), (36700, 546200), (43696, 458750), (45875, 436960), (54620, 367000), (58720, 341375), (68275, 293600), (73400, 273100), (87392, 229375), (91750, 218480), (109240, 183500), (136550, 146800)]