31349340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 105670656

約数和(自身を除く): 74321316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 180, 198, 213, 220, 223, 284, 330, 355, 396, 426, 446, 495, 639, 660, 669, 710, 781, 852, 892, 990, 1065, 1115, 1278, 1338, 1420, 1562, 1980, 2007, 2130, 2230, 2343, 2453, 2556, 2676, 3124, 3195, 3345, 3905, 4014, 4260, 4460, 4686, 4906, 6390, 6690, 7029, 7359, 7810, 8028, 9372, 9812, 10035, 11715, 12265, 12780, 13380, 14058, 14718, 15620, 15833, 20070, 22077, 23430, 24530, 28116, 29436, 31666, 35145, 36795, 40140, 44154, 46860, 47499, 49060, 63332, 70290, 73590, 79165, 88308, 94998, 110385, 140580, 142497, 147180, 158330, 174163, 189996, 220770, 237495, 284994, 316660, 348326, 441540, 474990, 522489, 569988, 696652, 712485, 870815, 949980, 1044978, 1424970, 1567467, 1741630, 2089956, 2612445, 2849940, 3134934, 3483260, 5224890, 6269868, 7837335, 10449780, 15674670, 31349340]

約数ペア:

[(1, 31349340), (2, 15674670), (3, 10449780), (4, 7837335), (5, 6269868), (6, 5224890), (9, 3483260), (10, 3134934), (11, 2849940), (12, 2612445), (15, 2089956), (18, 1741630), (20, 1567467), (22, 1424970), (30, 1044978), (33, 949980), (36, 870815), (44, 712485), (45, 696652), (55, 569988), (60, 522489), (66, 474990), (71, 441540), (90, 348326), (99, 316660), (110, 284994), (132, 237495), (142, 220770), (165, 189996), (180, 174163), (198, 158330), (213, 147180), (220, 142497), (223, 140580), (284, 110385), (330, 94998), (355, 88308), (396, 79165), (426, 73590), (446, 70290), (495, 63332), (639, 49060), (660, 47499), (669, 46860), (710, 44154), (781, 40140), (852, 36795), (892, 35145), (990, 31666), (1065, 29436), (1115, 28116), (1278, 24530), (1338, 23430), (1420, 22077), (1562, 20070), (1980, 15833), (2007, 15620), (2130, 14718), (2230, 14058), (2343, 13380), (2453, 12780), (2556, 12265), (2676, 11715), (3124, 10035), (3195, 9812), (3345, 9372), (3905, 8028), (4014, 7810), (4260, 7359), (4460, 7029), (4686, 6690), (4906, 6390)]