1321698640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{6421}}^1$

素因数の和:6548

約数の個数: 80

約数和(自身を含む): 3210794496

約数和(自身を除く): 1889095856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 83, 124, 155, 166, 248, 310, 332, 415, 496, 620, 664, 830, 1240, 1328, 1660, 2480, 2573, 3320, 5146, 6421, 6640, 10292, 12842, 12865, 20584, 25684, 25730, 32105, 41168, 51368, 51460, 64210, 102736, 102920, 128420, 199051, 205840, 256840, 398102, 513680, 532943, 796204, 995255, 1065886, 1592408, 1990510, 2131772, 2664715, 3184816, 3981020, 4263544, 5329430, 7962040, 8527088, 10658860, 15924080, 16521233, 21317720, 33042466, 42635440, 66084932, 82606165, 132169864, 165212330, 264339728, 330424660, 660849320, 1321698640]

約数ペア:

[(1, 1321698640), (2, 660849320), (4, 330424660), (5, 264339728), (8, 165212330), (10, 132169864), (16, 82606165), (20, 66084932), (31, 42635440), (40, 33042466), (62, 21317720), (80, 16521233), (83, 15924080), (124, 10658860), (155, 8527088), (166, 7962040), (248, 5329430), (310, 4263544), (332, 3981020), (415, 3184816), (496, 2664715), (620, 2131772), (664, 1990510), (830, 1592408), (1240, 1065886), (1328, 995255), (1660, 796204), (2480, 532943), (2573, 513680), (3320, 398102), (5146, 256840), (6421, 205840), (6640, 199051), (10292, 128420), (12842, 102920), (12865, 102736), (20584, 64210), (25684, 51460), (25730, 51368), (32105, 41168)]