138542720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6983}}^1$

素因数の和:7033

約数の個数: 64

約数和(自身を含む): 341936640

約数和(自身を除く): 203393920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6983, 9920, 13966, 19840, 27932, 34915, 55864, 69830, 111728, 139660, 216473, 223456, 279320, 432946, 446912, 558640, 865892, 893824, 1082365, 1117280, 1731784, 2164730, 2234560, 3463568, 4329460, 4469120, 6927136, 8658920, 13854272, 17317840, 27708544, 34635680, 69271360, 138542720]

約数ペア:

[(1, 138542720), (2, 69271360), (4, 34635680), (5, 27708544), (8, 17317840), (10, 13854272), (16, 8658920), (20, 6927136), (31, 4469120), (32, 4329460), (40, 3463568), (62, 2234560), (64, 2164730), (80, 1731784), (124, 1117280), (128, 1082365), (155, 893824), (160, 865892), (248, 558640), (310, 446912), (320, 432946), (496, 279320), (620, 223456), (640, 216473), (992, 139660), (1240, 111728), (1984, 69830), (2480, 55864), (3968, 34915), (4960, 27932), (6983, 19840), (9920, 13966)]