1261865240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{17117}}^1$

素因数の和:17244

約数の個数: 64

約数和(自身を含む): 3019615200

約数和(自身を除く): 1757749960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 970, 1843, 1940, 3686, 3880, 7372, 9215, 14744, 17117, 18430, 34234, 36860, 68468, 73720, 85585, 136936, 171170, 325223, 342340, 650446, 684680, 1300892, 1626115, 1660349, 2601784, 3252230, 3320698, 6504460, 6641396, 8301745, 13008920, 13282792, 16603490, 31546631, 33206980, 63093262, 66413960, 126186524, 157733155, 252373048, 315466310, 630932620, 1261865240]

約数ペア:

[(1, 1261865240), (2, 630932620), (4, 315466310), (5, 252373048), (8, 157733155), (10, 126186524), (19, 66413960), (20, 63093262), (38, 33206980), (40, 31546631), (76, 16603490), (95, 13282792), (97, 13008920), (152, 8301745), (190, 6641396), (194, 6504460), (380, 3320698), (388, 3252230), (485, 2601784), (760, 1660349), (776, 1626115), (970, 1300892), (1843, 684680), (1940, 650446), (3686, 342340), (3880, 325223), (7372, 171170), (9215, 136936), (14744, 85585), (17117, 73720), (18430, 68468), (34234, 36860)]