18795320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7703}}^1$

素因数の和:7775

約数の個数: 32

約数和(自身を含む): 42988320

約数和(自身を除く): 24193000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7703, 15406, 30812, 38515, 61624, 77030, 154060, 308120, 469883, 939766, 1879532, 2349415, 3759064, 4698830, 9397660, 18795320]

約数ペア:

[(1, 18795320), (2, 9397660), (4, 4698830), (5, 3759064), (8, 2349415), (10, 1879532), (20, 939766), (40, 469883), (61, 308120), (122, 154060), (244, 77030), (305, 61624), (488, 38515), (610, 30812), (1220, 15406), (2440, 7703)]