27981720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2026

約数の個数: 128

約数和(自身を含む): 100497600

約数和(自身を除く): 72515880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 1993, 2340, 2808, 3510, 3986, 4680, 5979, 7020, 7972, 9965, 11958, 14040, 15944, 17937, 19930, 23916, 25909, 29895, 35874, 39860, 47832, 51818, 53811, 59790, 71748, 77727, 79720, 89685, 103636, 107622, 119580, 129545, 143496, 155454, 179370, 207272, 215244, 233181, 239160, 259090, 269055, 310908, 358740, 388635, 430488, 466362, 518180, 538110, 621816, 699543, 717480, 777270, 932724, 1036360, 1076220, 1165905, 1399086, 1554540, 1865448, 2152440, 2331810, 2798172, 3109080, 3497715, 4663620, 5596344, 6995430, 9327240, 13990860, 27981720]

約数ペア:

[(1, 27981720), (2, 13990860), (3, 9327240), (4, 6995430), (5, 5596344), (6, 4663620), (8, 3497715), (9, 3109080), (10, 2798172), (12, 2331810), (13, 2152440), (15, 1865448), (18, 1554540), (20, 1399086), (24, 1165905), (26, 1076220), (27, 1036360), (30, 932724), (36, 777270), (39, 717480), (40, 699543), (45, 621816), (52, 538110), (54, 518180), (60, 466362), (65, 430488), (72, 388635), (78, 358740), (90, 310908), (104, 269055), (108, 259090), (117, 239160), (120, 233181), (130, 215244), (135, 207272), (156, 179370), (180, 155454), (195, 143496), (216, 129545), (234, 119580), (260, 107622), (270, 103636), (312, 89685), (351, 79720), (360, 77727), (390, 71748), (468, 59790), (520, 53811), (540, 51818), (585, 47832), (702, 39860), (780, 35874), (936, 29895), (1080, 25909), (1170, 23916), (1404, 19930), (1560, 17937), (1755, 15944), (1993, 14040), (2340, 11958), (2808, 9965), (3510, 7972), (3986, 7020), (4680, 5979)]