20504610

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:613

約数の個数: 128

約数和(自身を含む): 65894400

約数和(自身を除く): 45389790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 571, 630, 665, 798, 855, 945, 1026, 1142, 1197, 1330, 1710, 1713, 1890, 1995, 2394, 2565, 2855, 3426, 3591, 3990, 3997, 5130, 5139, 5710, 5985, 7182, 7994, 8565, 10278, 10849, 11970, 11991, 15417, 17130, 17955, 19985, 21698, 23982, 25695, 30834, 32547, 35910, 35973, 39970, 51390, 54245, 59955, 65094, 71946, 75943, 77085, 97641, 107919, 108490, 119910, 151886, 154170, 162735, 179865, 195282, 215838, 227829, 292923, 325470, 359730, 379715, 455658, 488205, 539595, 585846, 683487, 759430, 976410, 1079190, 1139145, 1366974, 1464615, 2050461, 2278290, 2929230, 3417435, 4100922, 6834870, 10252305, 20504610]

約数ペア:

[(1, 20504610), (2, 10252305), (3, 6834870), (5, 4100922), (6, 3417435), (7, 2929230), (9, 2278290), (10, 2050461), (14, 1464615), (15, 1366974), (18, 1139145), (19, 1079190), (21, 976410), (27, 759430), (30, 683487), (35, 585846), (38, 539595), (42, 488205), (45, 455658), (54, 379715), (57, 359730), (63, 325470), (70, 292923), (90, 227829), (95, 215838), (105, 195282), (114, 179865), (126, 162735), (133, 154170), (135, 151886), (171, 119910), (189, 108490), (190, 107919), (210, 97641), (266, 77085), (270, 75943), (285, 71946), (315, 65094), (342, 59955), (378, 54245), (399, 51390), (513, 39970), (570, 35973), (571, 35910), (630, 32547), (665, 30834), (798, 25695), (855, 23982), (945, 21698), (1026, 19985), (1142, 17955), (1197, 17130), (1330, 15417), (1710, 11991), (1713, 11970), (1890, 10849), (1995, 10278), (2394, 8565), (2565, 7994), (2855, 7182), (3426, 5985), (3591, 5710), (3990, 5139), (3997, 5130)]