18489660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:376

約数の個数: 144

約数和(自身を含む): 63584640

約数和(自身を除く): 45094980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 331, 380, 399, 420, 490, 532, 570, 588, 662, 665, 735, 798, 931, 980, 993, 1140, 1324, 1330, 1470, 1596, 1655, 1862, 1986, 1995, 2317, 2660, 2793, 2940, 3310, 3724, 3972, 3990, 4634, 4655, 4965, 5586, 6289, 6620, 6951, 7980, 9268, 9310, 9930, 11172, 11585, 12578, 13902, 13965, 16219, 18620, 18867, 19860, 23170, 25156, 27804, 27930, 31445, 32438, 34755, 37734, 44023, 46340, 48657, 55860, 62890, 64876, 69510, 75468, 81095, 88046, 94335, 97314, 125780, 132069, 139020, 162190, 176092, 188670, 194628, 220115, 243285, 264138, 308161, 324380, 377340, 440230, 486570, 528276, 616322, 660345, 880460, 924483, 973140, 1232644, 1320690, 1540805, 1848966, 2641380, 3081610, 3697932, 4622415, 6163220, 9244830, 18489660]

約数ペア:

[(1, 18489660), (2, 9244830), (3, 6163220), (4, 4622415), (5, 3697932), (6, 3081610), (7, 2641380), (10, 1848966), (12, 1540805), (14, 1320690), (15, 1232644), (19, 973140), (20, 924483), (21, 880460), (28, 660345), (30, 616322), (35, 528276), (38, 486570), (42, 440230), (49, 377340), (57, 324380), (60, 308161), (70, 264138), (76, 243285), (84, 220115), (95, 194628), (98, 188670), (105, 176092), (114, 162190), (133, 139020), (140, 132069), (147, 125780), (190, 97314), (196, 94335), (210, 88046), (228, 81095), (245, 75468), (266, 69510), (285, 64876), (294, 62890), (331, 55860), (380, 48657), (399, 46340), (420, 44023), (490, 37734), (532, 34755), (570, 32438), (588, 31445), (662, 27930), (665, 27804), (735, 25156), (798, 23170), (931, 19860), (980, 18867), (993, 18620), (1140, 16219), (1324, 13965), (1330, 13902), (1470, 12578), (1596, 11585), (1655, 11172), (1862, 9930), (1986, 9310), (1995, 9268), (2317, 7980), (2660, 6951), (2793, 6620), (2940, 6289), (3310, 5586), (3724, 4965), (3972, 4655), (3990, 4634)]