28704160

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 73401552

約数和(自身を除く): 44697392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 68, 80, 85, 122, 136, 160, 170, 173, 244, 272, 305, 340, 346, 488, 544, 610, 680, 692, 865, 976, 1037, 1220, 1360, 1384, 1730, 1952, 2074, 2440, 2720, 2768, 2941, 3460, 4148, 4880, 5185, 5536, 5882, 6920, 8296, 9760, 10370, 10553, 11764, 13840, 14705, 16592, 20740, 21106, 23528, 27680, 29410, 33184, 41480, 42212, 47056, 52765, 58820, 82960, 84424, 94112, 105530, 117640, 165920, 168848, 179401, 211060, 235280, 337696, 358802, 422120, 470560, 717604, 844240, 897005, 1435208, 1688480, 1794010, 2870416, 3588020, 5740832, 7176040, 14352080, 28704160]

約数ペア:

[(1, 28704160), (2, 14352080), (4, 7176040), (5, 5740832), (8, 3588020), (10, 2870416), (16, 1794010), (17, 1688480), (20, 1435208), (32, 897005), (34, 844240), (40, 717604), (61, 470560), (68, 422120), (80, 358802), (85, 337696), (122, 235280), (136, 211060), (160, 179401), (170, 168848), (173, 165920), (244, 117640), (272, 105530), (305, 94112), (340, 84424), (346, 82960), (488, 58820), (544, 52765), (610, 47056), (680, 42212), (692, 41480), (865, 33184), (976, 29410), (1037, 27680), (1220, 23528), (1360, 21106), (1384, 20740), (1730, 16592), (1952, 14705), (2074, 13840), (2440, 11764), (2720, 10553), (2768, 10370), (2941, 9760), (3460, 8296), (4148, 6920), (4880, 5882), (5185, 5536)]