21380458860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1\times {\mathrm{3733}}^1$

素因数の和:4472

約数の個数: 144

約数和(自身を含む): 66349535616

約数和(自身を除く): 44969076756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 677, 705, 846, 940, 1354, 1410, 1692, 2031, 2115, 2708, 2820, 3385, 3733, 4062, 4230, 6093, 6770, 7466, 8124, 8460, 10155, 11199, 12186, 13540, 14932, 18665, 20310, 22398, 24372, 30465, 31819, 33597, 37330, 40620, 44796, 55995, 60930, 63638, 67194, 74660, 95457, 111990, 121860, 127276, 134388, 159095, 167985, 175451, 190914, 223980, 286371, 318190, 335970, 350902, 381828, 477285, 526353, 572742, 636380, 671940, 701804, 877255, 954570, 1052706, 1145484, 1431855, 1579059, 1754510, 1909140, 2105412, 2527241, 2631765, 2863710, 3158118, 3509020, 5054482, 5263530, 5727420, 6316236, 7581723, 7895295, 10108964, 10527060, 12636205, 15163446, 15790590, 22745169, 25272410, 30326892, 31581180, 37908615, 45490338, 50544820, 75817230, 90980676, 113725845, 118780327, 151634460, 227451690, 237560654, 356340981, 454903380, 475121308, 593901635, 712681962, 1069022943, 1187803270, 1425363924, 1781704905, 2138045886, 2375606540, 3563409810, 4276091772, 5345114715, 7126819620, 10690229430, 21380458860]

約数ペア:

[(1, 21380458860), (2, 10690229430), (3, 7126819620), (4, 5345114715), (5, 4276091772), (6, 3563409810), (9, 2375606540), (10, 2138045886), (12, 1781704905), (15, 1425363924), (18, 1187803270), (20, 1069022943), (30, 712681962), (36, 593901635), (45, 475121308), (47, 454903380), (60, 356340981), (90, 237560654), (94, 227451690), (141, 151634460), (180, 118780327), (188, 113725845), (235, 90980676), (282, 75817230), (423, 50544820), (470, 45490338), (564, 37908615), (677, 31581180), (705, 30326892), (846, 25272410), (940, 22745169), (1354, 15790590), (1410, 15163446), (1692, 12636205), (2031, 10527060), (2115, 10108964), (2708, 7895295), (2820, 7581723), (3385, 6316236), (3733, 5727420), (4062, 5263530), (4230, 5054482), (6093, 3509020), (6770, 3158118), (7466, 2863710), (8124, 2631765), (8460, 2527241), (10155, 2105412), (11199, 1909140), (12186, 1754510), (13540, 1579059), (14932, 1431855), (18665, 1145484), (20310, 1052706), (22398, 954570), (24372, 877255), (30465, 701804), (31819, 671940), (33597, 636380), (37330, 572742), (40620, 526353), (44796, 477285), (55995, 381828), (60930, 350902), (63638, 335970), (67194, 318190), (74660, 286371), (95457, 223980), (111990, 190914), (121860, 175451), (127276, 167985), (134388, 159095)]