20578219480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{31583}}^1$

素因数の和:31793

約数の個数: 128

約数和(自身を含む): 57306009600

約数和(自身を除く): 36727790120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 179, 182, 260, 280, 358, 364, 455, 520, 716, 728, 895, 910, 1253, 1432, 1790, 1820, 2327, 2506, 3580, 3640, 4654, 5012, 6265, 7160, 9308, 10024, 11635, 12530, 16289, 18616, 23270, 25060, 31583, 32578, 46540, 50120, 63166, 65156, 81445, 93080, 126332, 130312, 157915, 162890, 221081, 252664, 315830, 325780, 410579, 442162, 631660, 651560, 821158, 884324, 1105405, 1263320, 1642316, 1768648, 2052895, 2210810, 2874053, 3284632, 4105790, 4421620, 5653357, 5748106, 8211580, 8843240, 11306714, 11496212, 14370265, 16423160, 22613428, 22992424, 28266785, 28740530, 39573499, 45226856, 56533570, 57481060, 73493641, 79146998, 113067140, 114962120, 146987282, 158293996, 197867495, 226134280, 293974564, 316587992, 367468205, 395734990, 514455487, 587949128, 734936410, 791469980, 1028910974, 1469872820, 1582939960, 2057821948, 2572277435, 2939745640, 4115643896, 5144554870, 10289109740, 20578219480]

約数ペア:

[(1, 20578219480), (2, 10289109740), (4, 5144554870), (5, 4115643896), (7, 2939745640), (8, 2572277435), (10, 2057821948), (13, 1582939960), (14, 1469872820), (20, 1028910974), (26, 791469980), (28, 734936410), (35, 587949128), (40, 514455487), (52, 395734990), (56, 367468205), (65, 316587992), (70, 293974564), (91, 226134280), (104, 197867495), (130, 158293996), (140, 146987282), (179, 114962120), (182, 113067140), (260, 79146998), (280, 73493641), (358, 57481060), (364, 56533570), (455, 45226856), (520, 39573499), (716, 28740530), (728, 28266785), (895, 22992424), (910, 22613428), (1253, 16423160), (1432, 14370265), (1790, 11496212), (1820, 11306714), (2327, 8843240), (2506, 8211580), (3580, 5748106), (3640, 5653357), (4654, 4421620), (5012, 4105790), (6265, 3284632), (7160, 2874053), (9308, 2210810), (10024, 2052895), (11635, 1768648), (12530, 1642316), (16289, 1263320), (18616, 1105405), (23270, 884324), (25060, 821158), (31583, 651560), (32578, 631660), (46540, 442162), (50120, 410579), (63166, 325780), (65156, 315830), (81445, 252664), (93080, 221081), (126332, 162890), (130312, 157915)]