12639940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 30643200

約数和(自身を除く): 18003260

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 31, 37, 38, 58, 62, 74, 76, 95, 116, 124, 145, 148, 155, 185, 190, 290, 310, 370, 380, 551, 580, 589, 620, 703, 740, 899, 1073, 1102, 1147, 1178, 1406, 1798, 2146, 2204, 2294, 2356, 2755, 2812, 2945, 3515, 3596, 4292, 4495, 4588, 5365, 5510, 5735, 5890, 7030, 8990, 10730, 11020, 11470, 11780, 14060, 17081, 17980, 20387, 21460, 21793, 22940, 33263, 34162, 40774, 43586, 66526, 68324, 81548, 85405, 87172, 101935, 108965, 133052, 166315, 170810, 203870, 217930, 332630, 341620, 407740, 435860, 631997, 665260, 1263994, 2527988, 3159985, 6319970, 12639940]

約数ペア:

[(1, 12639940), (2, 6319970), (4, 3159985), (5, 2527988), (10, 1263994), (19, 665260), (20, 631997), (29, 435860), (31, 407740), (37, 341620), (38, 332630), (58, 217930), (62, 203870), (74, 170810), (76, 166315), (95, 133052), (116, 108965), (124, 101935), (145, 87172), (148, 85405), (155, 81548), (185, 68324), (190, 66526), (290, 43586), (310, 40774), (370, 34162), (380, 33263), (551, 22940), (580, 21793), (589, 21460), (620, 20387), (703, 17980), (740, 17081), (899, 14060), (1073, 11780), (1102, 11470), (1147, 11020), (1178, 10730), (1406, 8990), (1798, 7030), (2146, 5890), (2204, 5735), (2294, 5510), (2356, 5365), (2755, 4588), (2812, 4495), (2945, 4292), (3515, 3596)]