638203020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{653}}^1$

素因数の和:864

約数の個数: 192

約数和(自身を含む): 2215019520

約数和(自身を除く): 1576816500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 179, 182, 195, 210, 260, 273, 358, 364, 390, 420, 455, 537, 546, 653, 716, 780, 895, 910, 1074, 1092, 1253, 1306, 1365, 1790, 1820, 1959, 2148, 2327, 2506, 2612, 2685, 2730, 3265, 3580, 3759, 3918, 4571, 4654, 5012, 5370, 5460, 6265, 6530, 6981, 7518, 7836, 8489, 9142, 9308, 9795, 10740, 11635, 12530, 13060, 13713, 13962, 15036, 16289, 16978, 18284, 18795, 19590, 22855, 23270, 25060, 25467, 27426, 27924, 32578, 33956, 34905, 37590, 39180, 42445, 45710, 46540, 48867, 50934, 54852, 59423, 65156, 68565, 69810, 75180, 81445, 84890, 91420, 97734, 101868, 116887, 118846, 127335, 137130, 139620, 162890, 169780, 178269, 195468, 233774, 237692, 244335, 254670, 274260, 297115, 325780, 350661, 356538, 467548, 488670, 509340, 584435, 594230, 701322, 713076, 818209, 891345, 977340, 1168870, 1188460, 1402644, 1519531, 1636418, 1753305, 1782690, 2337740, 2454627, 3039062, 3272836, 3506610, 3565380, 4091045, 4558593, 4909254, 6078124, 7013220, 7597655, 8182090, 9117186, 9818508, 10636717, 12273135, 15195310, 16364180, 18234372, 21273434, 22792965, 24546270, 30390620, 31910151, 42546868, 45585930, 49092540, 53183585, 63820302, 91171860, 106367170, 127640604, 159550755, 212734340, 319101510, 638203020]

約数ペア:

[(1, 638203020), (2, 319101510), (3, 212734340), (4, 159550755), (5, 127640604), (6, 106367170), (7, 91171860), (10, 63820302), (12, 53183585), (13, 49092540), (14, 45585930), (15, 42546868), (20, 31910151), (21, 30390620), (26, 24546270), (28, 22792965), (30, 21273434), (35, 18234372), (39, 16364180), (42, 15195310), (52, 12273135), (60, 10636717), (65, 9818508), (70, 9117186), (78, 8182090), (84, 7597655), (91, 7013220), (105, 6078124), (130, 4909254), (140, 4558593), (156, 4091045), (179, 3565380), (182, 3506610), (195, 3272836), (210, 3039062), (260, 2454627), (273, 2337740), (358, 1782690), (364, 1753305), (390, 1636418), (420, 1519531), (455, 1402644), (537, 1188460), (546, 1168870), (653, 977340), (716, 891345), (780, 818209), (895, 713076), (910, 701322), (1074, 594230), (1092, 584435), (1253, 509340), (1306, 488670), (1365, 467548), (1790, 356538), (1820, 350661), (1959, 325780), (2148, 297115), (2327, 274260), (2506, 254670), (2612, 244335), (2685, 237692), (2730, 233774), (3265, 195468), (3580, 178269), (3759, 169780), (3918, 162890), (4571, 139620), (4654, 137130), (5012, 127335), (5370, 118846), (5460, 116887), (6265, 101868), (6530, 97734), (6981, 91420), (7518, 84890), (7836, 81445), (8489, 75180), (9142, 69810), (9308, 68565), (9795, 65156), (10740, 59423), (11635, 54852), (12530, 50934), (13060, 48867), (13713, 46540), (13962, 45710), (15036, 42445), (16289, 39180), (16978, 37590), (18284, 34905), (18795, 33956), (19590, 32578), (22855, 27924), (23270, 27426), (25060, 25467)]