400575420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18701}}^1$

素因数の和:18740

約数の個数: 144

約数和(自身を含む): 1470426048

約数和(自身を除く): 1069850628

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 4284, 5355, 7140, 10710, 18701, 21420, 37402, 56103, 74804, 93505, 112206, 130907, 168309, 187010, 224412, 261814, 280515, 317917, 336618, 374020, 392721, 523628, 561030, 635834, 654535, 673236, 785442, 841545, 953751, 1122060, 1178163, 1271668, 1309070, 1570884, 1589585, 1683090, 1907502, 1963605, 2225419, 2356326, 2618140, 2861253, 3179170, 3366180, 3815004, 3927210, 4450838, 4712652, 4768755, 5722506, 5890815, 6358340, 6676257, 7854420, 8901676, 9537510, 11127095, 11445012, 11781630, 13352514, 14306265, 19075020, 20028771, 22254190, 23563260, 26705028, 28612530, 33381285, 40057542, 44508380, 57225060, 66762570, 80115084, 100143855, 133525140, 200287710, 400575420]

約数ペア:

[(1, 400575420), (2, 200287710), (3, 133525140), (4, 100143855), (5, 80115084), (6, 66762570), (7, 57225060), (9, 44508380), (10, 40057542), (12, 33381285), (14, 28612530), (15, 26705028), (17, 23563260), (18, 22254190), (20, 20028771), (21, 19075020), (28, 14306265), (30, 13352514), (34, 11781630), (35, 11445012), (36, 11127095), (42, 9537510), (45, 8901676), (51, 7854420), (60, 6676257), (63, 6358340), (68, 5890815), (70, 5722506), (84, 4768755), (85, 4712652), (90, 4450838), (102, 3927210), (105, 3815004), (119, 3366180), (126, 3179170), (140, 2861253), (153, 2618140), (170, 2356326), (180, 2225419), (204, 1963605), (210, 1907502), (238, 1683090), (252, 1589585), (255, 1570884), (306, 1309070), (315, 1271668), (340, 1178163), (357, 1122060), (420, 953751), (476, 841545), (510, 785442), (595, 673236), (612, 654535), (630, 635834), (714, 561030), (765, 523628), (1020, 392721), (1071, 374020), (1190, 336618), (1260, 317917), (1428, 280515), (1530, 261814), (1785, 224412), (2142, 187010), (2380, 168309), (3060, 130907), (3570, 112206), (4284, 93505), (5355, 74804), (7140, 56103), (10710, 37402), (18701, 21420)]