20976460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 47480832

約数和(自身を除く): 26504372

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 1471, 2852, 2942, 3565, 5884, 7130, 7355, 14260, 14710, 29420, 33833, 45601, 67666, 91202, 135332, 169165, 182404, 228005, 338330, 456010, 676660, 912020, 1048823, 2097646, 4195292, 5244115, 10488230, 20976460]

約数ペア:

[(1, 20976460), (2, 10488230), (4, 5244115), (5, 4195292), (10, 2097646), (20, 1048823), (23, 912020), (31, 676660), (46, 456010), (62, 338330), (92, 228005), (115, 182404), (124, 169165), (155, 135332), (230, 91202), (310, 67666), (460, 45601), (620, 33833), (713, 29420), (1426, 14710), (1471, 14260), (2852, 7355), (2942, 7130), (3565, 5884)]