28411360

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 70870464

約数和(自身を除く): 42459104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 61, 71, 80, 82, 122, 142, 160, 164, 205, 244, 284, 305, 328, 355, 410, 488, 568, 610, 656, 710, 820, 976, 1136, 1220, 1312, 1420, 1640, 1952, 2272, 2440, 2501, 2840, 2911, 3280, 4331, 4880, 5002, 5680, 5822, 6560, 8662, 9760, 10004, 11360, 11644, 12505, 14555, 17324, 20008, 21655, 23288, 25010, 29110, 34648, 40016, 43310, 46576, 50020, 58220, 69296, 80032, 86620, 93152, 100040, 116440, 138592, 173240, 177571, 200080, 232880, 346480, 355142, 400160, 465760, 692960, 710284, 887855, 1420568, 1775710, 2841136, 3551420, 5682272, 7102840, 14205680, 28411360]

約数ペア:

[(1, 28411360), (2, 14205680), (4, 7102840), (5, 5682272), (8, 3551420), (10, 2841136), (16, 1775710), (20, 1420568), (32, 887855), (40, 710284), (41, 692960), (61, 465760), (71, 400160), (80, 355142), (82, 346480), (122, 232880), (142, 200080), (160, 177571), (164, 173240), (205, 138592), (244, 116440), (284, 100040), (305, 93152), (328, 86620), (355, 80032), (410, 69296), (488, 58220), (568, 50020), (610, 46576), (656, 43310), (710, 40016), (820, 34648), (976, 29110), (1136, 25010), (1220, 23288), (1312, 21655), (1420, 20008), (1640, 17324), (1952, 14555), (2272, 12505), (2440, 11644), (2501, 11360), (2840, 10004), (2911, 9760), (3280, 8662), (4331, 6560), (4880, 5822), (5002, 5680)]