20315360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9767}}^1$

素因数の和:9795

約数の個数: 48

約数和(自身を含む): 51692256

約数和(自身を除く): 31376896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9767, 19534, 39068, 48835, 78136, 97670, 126971, 156272, 195340, 253942, 312544, 390680, 507884, 634855, 781360, 1015768, 1269710, 1562720, 2031536, 2539420, 4063072, 5078840, 10157680, 20315360]

約数ペア:

[(1, 20315360), (2, 10157680), (4, 5078840), (5, 4063072), (8, 2539420), (10, 2031536), (13, 1562720), (16, 1269710), (20, 1015768), (26, 781360), (32, 634855), (40, 507884), (52, 390680), (65, 312544), (80, 253942), (104, 195340), (130, 156272), (160, 126971), (208, 97670), (260, 78136), (416, 48835), (520, 39068), (1040, 19534), (2080, 9767)]