2849940

素因数分解:

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

素因数の和:309

約数の個数: 72

約数和(自身を含む): 8805888

約数和(自身を除く): 5955948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 223, 284, 355, 426, 446, 639, 669, 710, 852, 892, 1065, 1115, 1278, 1338, 1420, 2007, 2130, 2230, 2556, 2676, 3195, 3345, 4014, 4260, 4460, 6390, 6690, 8028, 10035, 12780, 13380, 15833, 20070, 31666, 40140, 47499, 63332, 79165, 94998, 142497, 158330, 189996, 237495, 284994, 316660, 474990, 569988, 712485, 949980, 1424970, 2849940]

約数ペア:

[(1, 2849940), (2, 1424970), (3, 949980), (4, 712485), (5, 569988), (6, 474990), (9, 316660), (10, 284994), (12, 237495), (15, 189996), (18, 158330), (20, 142497), (30, 94998), (36, 79165), (45, 63332), (60, 47499), (71, 40140), (90, 31666), (142, 20070), (180, 15833), (213, 13380), (223, 12780), (284, 10035), (355, 8028), (426, 6690), (446, 6390), (639, 4460), (669, 4260), (710, 4014), (852, 3345), (892, 3195), (1065, 2676), (1115, 2556), (1278, 2230), (1338, 2130), (1420, 2007)]