20218346816

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{236993}}^1$

素因数の和:237079

約数の個数: 56

約数和(自身を含む): 42378319104

約数和(自身を除く): 22159972288

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 172, 248, 344, 496, 688, 992, 1333, 1376, 1984, 2666, 2752, 5332, 10664, 21328, 42656, 85312, 236993, 473986, 947972, 1895944, 3791888, 7346783, 7583776, 10190699, 14693566, 15167552, 20381398, 29387132, 40762796, 58774264, 81525592, 117548528, 163051184, 235097056, 315911669, 326102368, 470194112, 631823338, 652204736, 1263646676, 2527293352, 5054586704, 10109173408, 20218346816]

約数ペア:

[(1, 20218346816), (2, 10109173408), (4, 5054586704), (8, 2527293352), (16, 1263646676), (31, 652204736), (32, 631823338), (43, 470194112), (62, 326102368), (64, 315911669), (86, 235097056), (124, 163051184), (172, 117548528), (248, 81525592), (344, 58774264), (496, 40762796), (688, 29387132), (992, 20381398), (1333, 15167552), (1376, 14693566), (1984, 10190699), (2666, 7583776), (2752, 7346783), (5332, 3791888), (10664, 1895944), (21328, 947972), (42656, 473986), (85312, 236993)]