20172568900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{6871}}^1$

素因数の和:7070

約数の個数: 144

約数和(自身を含む): 50892492672

約数和(自身を除く): 30719923772

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 157, 170, 187, 220, 275, 314, 340, 374, 425, 550, 628, 748, 785, 850, 935, 1100, 1570, 1700, 1727, 1870, 2669, 3140, 3454, 3740, 3925, 4675, 5338, 6871, 6908, 7850, 8635, 9350, 10676, 13345, 13742, 15700, 17270, 18700, 26690, 27484, 29359, 34355, 34540, 43175, 53380, 58718, 66725, 68710, 75581, 86350, 116807, 117436, 133450, 137420, 146795, 151162, 171775, 172700, 233614, 266900, 293590, 302324, 343550, 377905, 467228, 584035, 587180, 687100, 733975, 755810, 1078747, 1168070, 1284877, 1467950, 1511620, 1889525, 2157494, 2336140, 2569754, 2920175, 2935900, 3779050, 4314988, 5139508, 5393735, 5840350, 6424385, 7558100, 10787470, 11680700, 11866217, 12848770, 18338699, 21574940, 23732434, 25697540, 26968675, 32121925, 36677398, 47464868, 53937350, 59331085, 64243850, 73354796, 91693495, 107874700, 118662170, 128487700, 183386990, 201725689, 237324340, 296655425, 366773980, 403451378, 458467475, 593310850, 806902756, 916934950, 1008628445, 1186621700, 1833869900, 2017256890, 4034513780, 5043142225, 10086284450, 20172568900]

約数ペア:

[(1, 20172568900), (2, 10086284450), (4, 5043142225), (5, 4034513780), (10, 2017256890), (11, 1833869900), (17, 1186621700), (20, 1008628445), (22, 916934950), (25, 806902756), (34, 593310850), (44, 458467475), (50, 403451378), (55, 366773980), (68, 296655425), (85, 237324340), (100, 201725689), (110, 183386990), (157, 128487700), (170, 118662170), (187, 107874700), (220, 91693495), (275, 73354796), (314, 64243850), (340, 59331085), (374, 53937350), (425, 47464868), (550, 36677398), (628, 32121925), (748, 26968675), (785, 25697540), (850, 23732434), (935, 21574940), (1100, 18338699), (1570, 12848770), (1700, 11866217), (1727, 11680700), (1870, 10787470), (2669, 7558100), (3140, 6424385), (3454, 5840350), (3740, 5393735), (3925, 5139508), (4675, 4314988), (5338, 3779050), (6871, 2935900), (6908, 2920175), (7850, 2569754), (8635, 2336140), (9350, 2157494), (10676, 1889525), (13345, 1511620), (13742, 1467950), (15700, 1284877), (17270, 1168070), (18700, 1078747), (26690, 755810), (27484, 733975), (29359, 687100), (34355, 587180), (34540, 584035), (43175, 467228), (53380, 377905), (58718, 343550), (66725, 302324), (68710, 293590), (75581, 266900), (86350, 233614), (116807, 172700), (117436, 171775), (133450, 151162), (137420, 146795)]