2154572460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21803}}^1$

素因数の和:21885

約数の個数: 120

約数和(自身を含む): 6870091536

約数和(自身を除く): 4715519076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 2196, 2745, 3294, 3660, 4941, 5490, 6588, 8235, 9882, 10980, 16470, 19764, 21803, 24705, 32940, 43606, 49410, 65409, 87212, 98820, 109015, 130818, 196227, 218030, 261636, 327045, 392454, 436060, 588681, 654090, 784908, 981135, 1177362, 1308180, 1329983, 1766043, 1962270, 2354724, 2659966, 2943405, 3532086, 3924540, 3989949, 5319932, 5886810, 6649915, 7064172, 7979898, 8830215, 11773620, 11969847, 13299830, 15959796, 17660430, 19949745, 23939694, 26599660, 35320860, 35909541, 39899490, 47879388, 59849235, 71819082, 79798980, 107728623, 119698470, 143638164, 179547705, 215457246, 239396940, 359095410, 430914492, 538643115, 718190820, 1077286230, 2154572460]

約数ペア:

[(1, 2154572460), (2, 1077286230), (3, 718190820), (4, 538643115), (5, 430914492), (6, 359095410), (9, 239396940), (10, 215457246), (12, 179547705), (15, 143638164), (18, 119698470), (20, 107728623), (27, 79798980), (30, 71819082), (36, 59849235), (45, 47879388), (54, 39899490), (60, 35909541), (61, 35320860), (81, 26599660), (90, 23939694), (108, 19949745), (122, 17660430), (135, 15959796), (162, 13299830), (180, 11969847), (183, 11773620), (244, 8830215), (270, 7979898), (305, 7064172), (324, 6649915), (366, 5886810), (405, 5319932), (540, 3989949), (549, 3924540), (610, 3532086), (732, 2943405), (810, 2659966), (915, 2354724), (1098, 1962270), (1220, 1766043), (1620, 1329983), (1647, 1308180), (1830, 1177362), (2196, 981135), (2745, 784908), (3294, 654090), (3660, 588681), (4941, 436060), (5490, 392454), (6588, 327045), (8235, 261636), (9882, 218030), (10980, 196227), (16470, 130818), (19764, 109015), (21803, 98820), (24705, 87212), (32940, 65409), (43606, 49410)]