20284920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 69296760

約数和(自身を除く): 49011840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 67, 72, 87, 90, 116, 120, 134, 145, 174, 180, 201, 232, 261, 268, 290, 335, 348, 360, 402, 435, 522, 536, 580, 603, 670, 696, 804, 841, 870, 1005, 1044, 1160, 1206, 1305, 1340, 1608, 1682, 1740, 1943, 2010, 2088, 2412, 2523, 2610, 2680, 3015, 3364, 3480, 3886, 4020, 4205, 4824, 5046, 5220, 5829, 6030, 6728, 7569, 7772, 8040, 8410, 9715, 10092, 10440, 11658, 12060, 12615, 15138, 15544, 16820, 17487, 19430, 20184, 23316, 24120, 25230, 29145, 30276, 33640, 34974, 37845, 38860, 46632, 50460, 56347, 58290, 60552, 69948, 75690, 77720, 87435, 100920, 112694, 116580, 139896, 151380, 169041, 174870, 225388, 233160, 281735, 302760, 338082, 349740, 450776, 507123, 563470, 676164, 699480, 845205, 1014246, 1126940, 1352328, 1690410, 2028492, 2253880, 2535615, 3380820, 4056984, 5071230, 6761640, 10142460, 20284920]

約数ペア:

[(1, 20284920), (2, 10142460), (3, 6761640), (4, 5071230), (5, 4056984), (6, 3380820), (8, 2535615), (9, 2253880), (10, 2028492), (12, 1690410), (15, 1352328), (18, 1126940), (20, 1014246), (24, 845205), (29, 699480), (30, 676164), (36, 563470), (40, 507123), (45, 450776), (58, 349740), (60, 338082), (67, 302760), (72, 281735), (87, 233160), (90, 225388), (116, 174870), (120, 169041), (134, 151380), (145, 139896), (174, 116580), (180, 112694), (201, 100920), (232, 87435), (261, 77720), (268, 75690), (290, 69948), (335, 60552), (348, 58290), (360, 56347), (402, 50460), (435, 46632), (522, 38860), (536, 37845), (580, 34974), (603, 33640), (670, 30276), (696, 29145), (804, 25230), (841, 24120), (870, 23316), (1005, 20184), (1044, 19430), (1160, 17487), (1206, 16820), (1305, 15544), (1340, 15138), (1608, 12615), (1682, 12060), (1740, 11658), (1943, 10440), (2010, 10092), (2088, 9715), (2412, 8410), (2523, 8040), (2610, 7772), (2680, 7569), (3015, 6728), (3364, 6030), (3480, 5829), (3886, 5220), (4020, 5046), (4205, 4824)]