20054520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:650

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 49065480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 599, 620, 744, 837, 930, 1080, 1116, 1198, 1240, 1395, 1674, 1797, 1860, 2232, 2396, 2790, 2995, 3348, 3594, 3720, 4185, 4792, 5391, 5580, 5990, 6696, 7188, 8370, 8985, 10782, 11160, 11980, 14376, 16173, 16740, 17970, 18569, 21564, 23960, 26955, 32346, 33480, 35940, 37138, 43128, 53910, 55707, 64692, 71880, 74276, 80865, 92845, 107820, 111414, 129384, 148552, 161730, 167121, 185690, 215640, 222828, 278535, 323460, 334242, 371380, 445656, 501363, 557070, 646920, 668484, 742760, 835605, 1002726, 1114140, 1336968, 1671210, 2005452, 2228280, 2506815, 3342420, 4010904, 5013630, 6684840, 10027260, 20054520]

約数ペア:

[(1, 20054520), (2, 10027260), (3, 6684840), (4, 5013630), (5, 4010904), (6, 3342420), (8, 2506815), (9, 2228280), (10, 2005452), (12, 1671210), (15, 1336968), (18, 1114140), (20, 1002726), (24, 835605), (27, 742760), (30, 668484), (31, 646920), (36, 557070), (40, 501363), (45, 445656), (54, 371380), (60, 334242), (62, 323460), (72, 278535), (90, 222828), (93, 215640), (108, 185690), (120, 167121), (124, 161730), (135, 148552), (155, 129384), (180, 111414), (186, 107820), (216, 92845), (248, 80865), (270, 74276), (279, 71880), (310, 64692), (360, 55707), (372, 53910), (465, 43128), (540, 37138), (558, 35940), (599, 33480), (620, 32346), (744, 26955), (837, 23960), (930, 21564), (1080, 18569), (1116, 17970), (1198, 16740), (1240, 16173), (1395, 14376), (1674, 11980), (1797, 11160), (1860, 10782), (2232, 8985), (2396, 8370), (2790, 7188), (2995, 6696), (3348, 5990), (3594, 5580), (3720, 5391), (4185, 4792)]