18896048

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 38308560

約数和(自身を除く): 19412512

約数列:

[1, 2, 4, 8, 16, 37, 59, 74, 118, 148, 236, 296, 472, 541, 592, 944, 1082, 2164, 2183, 4328, 4366, 8656, 8732, 17464, 20017, 31919, 34928, 40034, 63838, 80068, 127676, 160136, 255352, 320272, 510704, 1181003, 2362006, 4724012, 9448024, 18896048]

約数ペア:

[(1, 18896048), (2, 9448024), (4, 4724012), (8, 2362006), (16, 1181003), (37, 510704), (59, 320272), (74, 255352), (118, 160136), (148, 127676), (236, 80068), (296, 63838), (472, 40034), (541, 34928), (592, 31919), (944, 20017), (1082, 17464), (2164, 8732), (2183, 8656), (4328, 4366)]