90502020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 216

約数和(自身を含む): 330640128

約数和(自身を除く): 240138108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 331, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 662, 735, 868, 882, 930, 980, 993, 1085, 1116, 1260, 1302, 1324, 1395, 1470, 1519, 1655, 1764, 1860, 1953, 1986, 2170, 2205, 2317, 2604, 2790, 2940, 2979, 3038, 3255, 3310, 3906, 3972, 4340, 4410, 4557, 4634, 4965, 5580, 5958, 6076, 6510, 6620, 6951, 7595, 7812, 8820, 9114, 9268, 9765, 9930, 10261, 11585, 11916, 13020, 13671, 13902, 14895, 15190, 16219, 18228, 19530, 19860, 20522, 20853, 22785, 23170, 27342, 27804, 29790, 30380, 30783, 32438, 34755, 39060, 41044, 41706, 45570, 46340, 48657, 51305, 54684, 59580, 61566, 64876, 68355, 69510, 71827, 81095, 83412, 91140, 92349, 97314, 102610, 104265, 123132, 136710, 139020, 143654, 145971, 153915, 162190, 184698, 194628, 205220, 208530, 215481, 243285, 273420, 287308, 291942, 307830, 324380, 359135, 369396, 417060, 430962, 461745, 486570, 502789, 583884, 615660, 646443, 718270, 729855, 861924, 923490, 973140, 1005578, 1077405, 1292886, 1436540, 1459710, 1508367, 1846980, 2011156, 2154810, 2513945, 2585772, 2919420, 3016734, 3232215, 4309620, 4525101, 5027890, 6033468, 6464430, 7541835, 9050202, 10055780, 12928860, 15083670, 18100404, 22625505, 30167340, 45251010, 90502020]

約数ペア:

[(1, 90502020), (2, 45251010), (3, 30167340), (4, 22625505), (5, 18100404), (6, 15083670), (7, 12928860), (9, 10055780), (10, 9050202), (12, 7541835), (14, 6464430), (15, 6033468), (18, 5027890), (20, 4525101), (21, 4309620), (28, 3232215), (30, 3016734), (31, 2919420), (35, 2585772), (36, 2513945), (42, 2154810), (45, 2011156), (49, 1846980), (60, 1508367), (62, 1459710), (63, 1436540), (70, 1292886), (84, 1077405), (90, 1005578), (93, 973140), (98, 923490), (105, 861924), (124, 729855), (126, 718270), (140, 646443), (147, 615660), (155, 583884), (180, 502789), (186, 486570), (196, 461745), (210, 430962), (217, 417060), (245, 369396), (252, 359135), (279, 324380), (294, 307830), (310, 291942), (315, 287308), (331, 273420), (372, 243285), (420, 215481), (434, 208530), (441, 205220), (465, 194628), (490, 184698), (558, 162190), (588, 153915), (620, 145971), (630, 143654), (651, 139020), (662, 136710), (735, 123132), (868, 104265), (882, 102610), (930, 97314), (980, 92349), (993, 91140), (1085, 83412), (1116, 81095), (1260, 71827), (1302, 69510), (1324, 68355), (1395, 64876), (1470, 61566), (1519, 59580), (1655, 54684), (1764, 51305), (1860, 48657), (1953, 46340), (1986, 45570), (2170, 41706), (2205, 41044), (2317, 39060), (2604, 34755), (2790, 32438), (2940, 30783), (2979, 30380), (3038, 29790), (3255, 27804), (3310, 27342), (3906, 23170), (3972, 22785), (4340, 20853), (4410, 20522), (4557, 19860), (4634, 19530), (4965, 18228), (5580, 16219), (5958, 15190), (6076, 14895), (6510, 13902), (6620, 13671), (6951, 13020), (7595, 11916), (7812, 11585), (8820, 10261), (9114, 9930), (9268, 9765)]