18128288

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 37013760

約数和(自身を除く): 18885472

約数列:

[1, 2, 4, 8, 16, 32, 71, 79, 101, 142, 158, 202, 284, 316, 404, 568, 632, 808, 1136, 1264, 1616, 2272, 2528, 3232, 5609, 7171, 7979, 11218, 14342, 15958, 22436, 28684, 31916, 44872, 57368, 63832, 89744, 114736, 127664, 179488, 229472, 255328, 566509, 1133018, 2266036, 4532072, 9064144, 18128288]

約数ペア:

[(1, 18128288), (2, 9064144), (4, 4532072), (8, 2266036), (16, 1133018), (32, 566509), (71, 255328), (79, 229472), (101, 179488), (142, 127664), (158, 114736), (202, 89744), (284, 63832), (316, 57368), (404, 44872), (568, 31916), (632, 28684), (808, 22436), (1136, 15958), (1264, 14342), (1616, 11218), (2272, 7979), (2528, 7171), (3232, 5609)]