20741700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:131

約数の個数: 216

約数和(自身を含む): 74807712

約数和(自身を除く): 54066012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 49, 50, 51, 60, 68, 70, 75, 83, 84, 85, 98, 100, 102, 105, 119, 140, 147, 150, 166, 170, 175, 196, 204, 210, 238, 245, 249, 255, 294, 300, 332, 340, 350, 357, 415, 420, 425, 476, 490, 498, 510, 525, 581, 588, 595, 700, 714, 735, 830, 833, 850, 980, 996, 1020, 1050, 1162, 1190, 1225, 1245, 1275, 1411, 1428, 1470, 1660, 1666, 1700, 1743, 1785, 2075, 2100, 2324, 2380, 2450, 2490, 2499, 2550, 2822, 2905, 2940, 2975, 3332, 3486, 3570, 3675, 4067, 4150, 4165, 4233, 4900, 4980, 4998, 5100, 5644, 5810, 5950, 6225, 6972, 7055, 7140, 7350, 8134, 8300, 8330, 8466, 8715, 8925, 9877, 9996, 11620, 11900, 12201, 12450, 12495, 14110, 14525, 14700, 16268, 16660, 16932, 17430, 17850, 19754, 20335, 20825, 21165, 24402, 24900, 24990, 28220, 29050, 29631, 34860, 35275, 35700, 39508, 40670, 41650, 42330, 43575, 48804, 49385, 49980, 58100, 59262, 61005, 62475, 69139, 70550, 81340, 83300, 84660, 87150, 98770, 101675, 105825, 118524, 122010, 124950, 138278, 141100, 148155, 174300, 197540, 203350, 207417, 211650, 244020, 246925, 249900, 276556, 296310, 305025, 345695, 406700, 414834, 423300, 493850, 592620, 610050, 691390, 740775, 829668, 987700, 1037085, 1220100, 1382780, 1481550, 1728475, 2074170, 2963100, 3456950, 4148340, 5185425, 6913900, 10370850, 20741700]

約数ペア:

[(1, 20741700), (2, 10370850), (3, 6913900), (4, 5185425), (5, 4148340), (6, 3456950), (7, 2963100), (10, 2074170), (12, 1728475), (14, 1481550), (15, 1382780), (17, 1220100), (20, 1037085), (21, 987700), (25, 829668), (28, 740775), (30, 691390), (34, 610050), (35, 592620), (42, 493850), (49, 423300), (50, 414834), (51, 406700), (60, 345695), (68, 305025), (70, 296310), (75, 276556), (83, 249900), (84, 246925), (85, 244020), (98, 211650), (100, 207417), (102, 203350), (105, 197540), (119, 174300), (140, 148155), (147, 141100), (150, 138278), (166, 124950), (170, 122010), (175, 118524), (196, 105825), (204, 101675), (210, 98770), (238, 87150), (245, 84660), (249, 83300), (255, 81340), (294, 70550), (300, 69139), (332, 62475), (340, 61005), (350, 59262), (357, 58100), (415, 49980), (420, 49385), (425, 48804), (476, 43575), (490, 42330), (498, 41650), (510, 40670), (525, 39508), (581, 35700), (588, 35275), (595, 34860), (700, 29631), (714, 29050), (735, 28220), (830, 24990), (833, 24900), (850, 24402), (980, 21165), (996, 20825), (1020, 20335), (1050, 19754), (1162, 17850), (1190, 17430), (1225, 16932), (1245, 16660), (1275, 16268), (1411, 14700), (1428, 14525), (1470, 14110), (1660, 12495), (1666, 12450), (1700, 12201), (1743, 11900), (1785, 11620), (2075, 9996), (2100, 9877), (2324, 8925), (2380, 8715), (2450, 8466), (2490, 8330), (2499, 8300), (2550, 8134), (2822, 7350), (2905, 7140), (2940, 7055), (2975, 6972), (3332, 6225), (3486, 5950), (3570, 5810), (3675, 5644), (4067, 5100), (4150, 4998), (4165, 4980), (4233, 4900)]