40806540

素因数分解:

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

素因数の和:220

約数の個数: 144

約数和(自身を含む): 130830336

約数和(自身を除く): 90023796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 71, 90, 93, 103, 124, 142, 155, 180, 186, 206, 213, 279, 284, 309, 310, 355, 372, 412, 426, 465, 515, 558, 618, 620, 639, 710, 852, 927, 930, 1030, 1065, 1116, 1236, 1278, 1395, 1420, 1545, 1854, 1860, 2060, 2130, 2201, 2556, 2790, 3090, 3193, 3195, 3708, 4260, 4402, 4635, 5580, 6180, 6386, 6390, 6603, 7313, 8804, 9270, 9579, 11005, 12772, 12780, 13206, 14626, 15965, 18540, 19158, 19809, 21939, 22010, 26412, 28737, 29252, 31930, 33015, 36565, 38316, 39618, 43878, 44020, 47895, 57474, 63860, 65817, 66030, 73130, 79236, 87756, 95790, 99045, 109695, 114948, 131634, 132060, 143685, 146260, 191580, 198090, 219390, 226703, 263268, 287370, 329085, 396180, 438780, 453406, 574740, 658170, 680109, 906812, 1133515, 1316340, 1360218, 2040327, 2267030, 2720436, 3400545, 4080654, 4534060, 6801090, 8161308, 10201635, 13602180, 20403270, 40806540]

約数ペア:

[(1, 40806540), (2, 20403270), (3, 13602180), (4, 10201635), (5, 8161308), (6, 6801090), (9, 4534060), (10, 4080654), (12, 3400545), (15, 2720436), (18, 2267030), (20, 2040327), (30, 1360218), (31, 1316340), (36, 1133515), (45, 906812), (60, 680109), (62, 658170), (71, 574740), (90, 453406), (93, 438780), (103, 396180), (124, 329085), (142, 287370), (155, 263268), (180, 226703), (186, 219390), (206, 198090), (213, 191580), (279, 146260), (284, 143685), (309, 132060), (310, 131634), (355, 114948), (372, 109695), (412, 99045), (426, 95790), (465, 87756), (515, 79236), (558, 73130), (618, 66030), (620, 65817), (639, 63860), (710, 57474), (852, 47895), (927, 44020), (930, 43878), (1030, 39618), (1065, 38316), (1116, 36565), (1236, 33015), (1278, 31930), (1395, 29252), (1420, 28737), (1545, 26412), (1854, 22010), (1860, 21939), (2060, 19809), (2130, 19158), (2201, 18540), (2556, 15965), (2790, 14626), (3090, 13206), (3193, 12780), (3195, 12772), (3708, 11005), (4260, 9579), (4402, 9270), (4635, 8804), (5580, 7313), (6180, 6603), (6386, 6390)]