18968528

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 38330880

約数和(自身を除く): 19362352

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 167, 229, 248, 334, 458, 496, 668, 916, 1336, 1832, 2672, 3664, 5177, 7099, 10354, 14198, 20708, 28396, 38243, 41416, 56792, 76486, 82832, 113584, 152972, 305944, 611888, 1185533, 2371066, 4742132, 9484264, 18968528]

約数ペア:

[(1, 18968528), (2, 9484264), (4, 4742132), (8, 2371066), (16, 1185533), (31, 611888), (62, 305944), (124, 152972), (167, 113584), (229, 82832), (248, 76486), (334, 56792), (458, 41416), (496, 38243), (668, 28396), (916, 20708), (1336, 14198), (1832, 10354), (2672, 7099), (3664, 5177)]