21265791840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1640879}}^1$

素因数の和:1640906

約数の個数: 120

約数和(自身を含む): 75050569440

約数和(自身を除く): 53784777600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 1640879, 3281758, 4922637, 6563516, 8204395, 9845274, 13127032, 14767911, 16408790, 19690548, 24613185, 26254064, 29535822, 32817580, 39381096, 44303733, 49226370, 52508128, 59071644, 65635160, 73839555, 78762192, 88607466, 98452740, 118143288, 131270320, 132911199, 147679110, 157524384, 177214932, 196905480, 221518665, 236286576, 262540640, 265822398, 295358220, 354429864, 393810960, 443037330, 472573152, 531644796, 590716440, 664555995, 708859728, 787621920, 886074660, 1063289592, 1181432880, 1329111990, 1417719456, 1772149320, 2126579184, 2362865760, 2658223980, 3544298640, 4253158368, 5316447960, 7088597280, 10632895920, 21265791840]

約数ペア:

[(1, 21265791840), (2, 10632895920), (3, 7088597280), (4, 5316447960), (5, 4253158368), (6, 3544298640), (8, 2658223980), (9, 2362865760), (10, 2126579184), (12, 1772149320), (15, 1417719456), (16, 1329111990), (18, 1181432880), (20, 1063289592), (24, 886074660), (27, 787621920), (30, 708859728), (32, 664555995), (36, 590716440), (40, 531644796), (45, 472573152), (48, 443037330), (54, 393810960), (60, 354429864), (72, 295358220), (80, 265822398), (81, 262540640), (90, 236286576), (96, 221518665), (108, 196905480), (120, 177214932), (135, 157524384), (144, 147679110), (160, 132911199), (162, 131270320), (180, 118143288), (216, 98452740), (240, 88607466), (270, 78762192), (288, 73839555), (324, 65635160), (360, 59071644), (405, 52508128), (432, 49226370), (480, 44303733), (540, 39381096), (648, 32817580), (720, 29535822), (810, 26254064), (864, 24613185), (1080, 19690548), (1296, 16408790), (1440, 14767911), (1620, 13127032), (2160, 9845274), (2592, 8204395), (3240, 6563516), (4320, 4922637), (6480, 3281758), (12960, 1640879)]