20742320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11273}}^1$

素因数の和:11309

約数の個数: 40

約数和(自身を含む): 50327136

約数和(自身を除く): 29584816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11273, 22546, 45092, 56365, 90184, 112730, 180368, 225460, 259279, 450920, 518558, 901840, 1037116, 1296395, 2074232, 2592790, 4148464, 5185580, 10371160, 20742320]

約数ペア:

[(1, 20742320), (2, 10371160), (4, 5185580), (5, 4148464), (8, 2592790), (10, 2074232), (16, 1296395), (20, 1037116), (23, 901840), (40, 518558), (46, 450920), (80, 259279), (92, 225460), (115, 180368), (184, 112730), (230, 90184), (368, 56365), (460, 45092), (920, 22546), (1840, 11273)]