64759781840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2039}}^1\times {\mathrm{30539}}^1$

素因数の和:32604

約数の個数: 80

約数和(自身を含む): 162233366400

約数和(自身を除く): 97473584560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2039, 4078, 8156, 10195, 16312, 20390, 26507, 30539, 32624, 40780, 53014, 61078, 81560, 106028, 122156, 132535, 152695, 163120, 212056, 244312, 265070, 305390, 397007, 424112, 488624, 530140, 610780, 794014, 1060280, 1221560, 1588028, 1985035, 2120560, 2443120, 3176056, 3970070, 6352112, 7940140, 15880280, 31760560, 62269021, 124538042, 249076084, 311345105, 498152168, 622690210, 809497273, 996304336, 1245380420, 1618994546, 2490760840, 3237989092, 4047486365, 4981521680, 6475978184, 8094972730, 12951956368, 16189945460, 32379890920, 64759781840]

約数ペア:

[(1, 64759781840), (2, 32379890920), (4, 16189945460), (5, 12951956368), (8, 8094972730), (10, 6475978184), (13, 4981521680), (16, 4047486365), (20, 3237989092), (26, 2490760840), (40, 1618994546), (52, 1245380420), (65, 996304336), (80, 809497273), (104, 622690210), (130, 498152168), (208, 311345105), (260, 249076084), (520, 124538042), (1040, 62269021), (2039, 31760560), (4078, 15880280), (8156, 7940140), (10195, 6352112), (16312, 3970070), (20390, 3176056), (26507, 2443120), (30539, 2120560), (32624, 1985035), (40780, 1588028), (53014, 1221560), (61078, 1060280), (81560, 794014), (106028, 610780), (122156, 530140), (132535, 488624), (152695, 424112), (163120, 397007), (212056, 305390), (244312, 265070)]