20403270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 56070144

約数和(自身を除く): 35666874

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 71, 90, 93, 103, 142, 155, 186, 206, 213, 279, 309, 310, 355, 426, 465, 515, 558, 618, 639, 710, 927, 930, 1030, 1065, 1278, 1395, 1545, 1854, 2130, 2201, 2790, 3090, 3193, 3195, 4402, 4635, 6386, 6390, 6603, 7313, 9270, 9579, 11005, 13206, 14626, 15965, 19158, 19809, 21939, 22010, 28737, 31930, 33015, 36565, 39618, 43878, 47895, 57474, 65817, 66030, 73130, 95790, 99045, 109695, 131634, 143685, 198090, 219390, 226703, 287370, 329085, 453406, 658170, 680109, 1133515, 1360218, 2040327, 2267030, 3400545, 4080654, 6801090, 10201635, 20403270]

約数ペア:

[(1, 20403270), (2, 10201635), (3, 6801090), (5, 4080654), (6, 3400545), (9, 2267030), (10, 2040327), (15, 1360218), (18, 1133515), (30, 680109), (31, 658170), (45, 453406), (62, 329085), (71, 287370), (90, 226703), (93, 219390), (103, 198090), (142, 143685), (155, 131634), (186, 109695), (206, 99045), (213, 95790), (279, 73130), (309, 66030), (310, 65817), (355, 57474), (426, 47895), (465, 43878), (515, 39618), (558, 36565), (618, 33015), (639, 31930), (710, 28737), (927, 22010), (930, 21939), (1030, 19809), (1065, 19158), (1278, 15965), (1395, 14626), (1545, 13206), (1854, 11005), (2130, 9579), (2201, 9270), (2790, 7313), (3090, 6603), (3193, 6390), (3195, 6386), (4402, 4635)]