28045360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 75834432

約数和(自身を除く): 47789072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 821, 854, 976, 1220, 1642, 1708, 2135, 2440, 3284, 3416, 4105, 4270, 4880, 5747, 6568, 6832, 8210, 8540, 11494, 13136, 16420, 17080, 22988, 28735, 32840, 34160, 45976, 50081, 57470, 65680, 91952, 100162, 114940, 200324, 229880, 250405, 350567, 400648, 459760, 500810, 701134, 801296, 1001620, 1402268, 1752835, 2003240, 2804536, 3505670, 4006480, 5609072, 7011340, 14022680, 28045360]

約数ペア:

[(1, 28045360), (2, 14022680), (4, 7011340), (5, 5609072), (7, 4006480), (8, 3505670), (10, 2804536), (14, 2003240), (16, 1752835), (20, 1402268), (28, 1001620), (35, 801296), (40, 701134), (56, 500810), (61, 459760), (70, 400648), (80, 350567), (112, 250405), (122, 229880), (140, 200324), (244, 114940), (280, 100162), (305, 91952), (427, 65680), (488, 57470), (560, 50081), (610, 45976), (821, 34160), (854, 32840), (976, 28735), (1220, 22988), (1642, 17080), (1708, 16420), (2135, 13136), (2440, 11494), (3284, 8540), (3416, 8210), (4105, 6832), (4270, 6568), (4880, 5747)]