20820478920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{125093}}^1$

素因数の和:125199

約数の個数: 128

約数和(自身を含む): 66650083200

約数和(自身を除く): 45829604280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 73, 76, 95, 114, 120, 146, 152, 190, 219, 228, 285, 292, 365, 380, 438, 456, 570, 584, 730, 760, 876, 1095, 1140, 1387, 1460, 1752, 2190, 2280, 2774, 2920, 4161, 4380, 5548, 6935, 8322, 8760, 11096, 13870, 16644, 20805, 27740, 33288, 41610, 55480, 83220, 125093, 166440, 250186, 375279, 500372, 625465, 750558, 1000744, 1250930, 1501116, 1876395, 2376767, 2501860, 3002232, 3752790, 4753534, 5003720, 7130301, 7505580, 9131789, 9507068, 11883835, 14260602, 15011160, 18263578, 19014136, 23767670, 27395367, 28521204, 35651505, 36527156, 45658945, 47535340, 54790734, 57042408, 71303010, 73054312, 91317890, 95070680, 109581468, 136976835, 142606020, 173503991, 182635780, 219162936, 273953670, 285212040, 347007982, 365271560, 520511973, 547907340, 694015964, 867519955, 1041023946, 1095814680, 1388031928, 1735039910, 2082047892, 2602559865, 3470079820, 4164095784, 5205119730, 6940159640, 10410239460, 20820478920]

約数ペア:

[(1, 20820478920), (2, 10410239460), (3, 6940159640), (4, 5205119730), (5, 4164095784), (6, 3470079820), (8, 2602559865), (10, 2082047892), (12, 1735039910), (15, 1388031928), (19, 1095814680), (20, 1041023946), (24, 867519955), (30, 694015964), (38, 547907340), (40, 520511973), (57, 365271560), (60, 347007982), (73, 285212040), (76, 273953670), (95, 219162936), (114, 182635780), (120, 173503991), (146, 142606020), (152, 136976835), (190, 109581468), (219, 95070680), (228, 91317890), (285, 73054312), (292, 71303010), (365, 57042408), (380, 54790734), (438, 47535340), (456, 45658945), (570, 36527156), (584, 35651505), (730, 28521204), (760, 27395367), (876, 23767670), (1095, 19014136), (1140, 18263578), (1387, 15011160), (1460, 14260602), (1752, 11883835), (2190, 9507068), (2280, 9131789), (2774, 7505580), (2920, 7130301), (4161, 5003720), (4380, 4753534), (5548, 3752790), (6935, 3002232), (8322, 2501860), (8760, 2376767), (11096, 1876395), (13870, 1501116), (16644, 1250930), (20805, 1000744), (27740, 750558), (33288, 625465), (41610, 500372), (55480, 375279), (83220, 250186), (125093, 166440)]