20668830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 62512128

約数和(自身を除く): 41843298

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 67, 70, 78, 91, 105, 113, 130, 134, 182, 195, 201, 210, 226, 273, 335, 339, 390, 402, 455, 469, 546, 565, 670, 678, 791, 871, 910, 938, 1005, 1130, 1365, 1407, 1469, 1582, 1695, 1742, 2010, 2345, 2373, 2613, 2730, 2814, 2938, 3390, 3955, 4355, 4407, 4690, 4746, 5226, 6097, 7035, 7345, 7571, 7910, 8710, 8814, 10283, 11865, 12194, 13065, 14070, 14690, 15142, 18291, 20566, 22035, 22713, 23730, 26130, 30485, 30849, 36582, 37855, 44070, 45426, 51415, 52997, 60970, 61698, 75710, 91455, 98423, 102830, 105994, 113565, 154245, 158991, 182910, 196846, 227130, 264985, 295269, 308490, 317982, 492115, 529970, 590538, 688961, 794955, 984230, 1377922, 1476345, 1589910, 2066883, 2952690, 3444805, 4133766, 6889610, 10334415, 20668830]

約数ペア:

[(1, 20668830), (2, 10334415), (3, 6889610), (5, 4133766), (6, 3444805), (7, 2952690), (10, 2066883), (13, 1589910), (14, 1476345), (15, 1377922), (21, 984230), (26, 794955), (30, 688961), (35, 590538), (39, 529970), (42, 492115), (65, 317982), (67, 308490), (70, 295269), (78, 264985), (91, 227130), (105, 196846), (113, 182910), (130, 158991), (134, 154245), (182, 113565), (195, 105994), (201, 102830), (210, 98423), (226, 91455), (273, 75710), (335, 61698), (339, 60970), (390, 52997), (402, 51415), (455, 45426), (469, 44070), (546, 37855), (565, 36582), (670, 30849), (678, 30485), (791, 26130), (871, 23730), (910, 22713), (938, 22035), (1005, 20566), (1130, 18291), (1365, 15142), (1407, 14690), (1469, 14070), (1582, 13065), (1695, 12194), (1742, 11865), (2010, 10283), (2345, 8814), (2373, 8710), (2613, 7910), (2730, 7571), (2814, 7345), (2938, 7035), (3390, 6097), (3955, 5226), (4355, 4746), (4407, 4690)]