238889660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{6481}}^1$

素因数の和:6606

約数の個数: 48

約数和(自身を含む): 533598240

約数和(自身を除く): 294708580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3686, 6481, 7372, 9215, 12962, 18430, 25924, 32405, 36860, 64810, 123139, 129620, 246278, 492556, 615695, 628657, 1231390, 1257314, 2462780, 2514628, 3143285, 6286570, 11944483, 12573140, 23888966, 47777932, 59722415, 119444830, 238889660]

約数ペア:

[(1, 238889660), (2, 119444830), (4, 59722415), (5, 47777932), (10, 23888966), (19, 12573140), (20, 11944483), (38, 6286570), (76, 3143285), (95, 2514628), (97, 2462780), (190, 1257314), (194, 1231390), (380, 628657), (388, 615695), (485, 492556), (970, 246278), (1843, 129620), (1940, 123139), (3686, 64810), (6481, 36860), (7372, 32405), (9215, 25924), (12962, 18430)]