20972380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7333}}^1$

素因数の和:7366

約数の個数: 48

約数和(自身を含む): 51748704

約数和(自身を除く): 30776324

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7333, 14666, 29332, 36665, 73330, 80663, 95329, 146660, 161326, 190658, 322652, 381316, 403315, 476645, 806630, 953290, 1048619, 1613260, 1906580, 2097238, 4194476, 5243095, 10486190, 20972380]

約数ペア:

[(1, 20972380), (2, 10486190), (4, 5243095), (5, 4194476), (10, 2097238), (11, 1906580), (13, 1613260), (20, 1048619), (22, 953290), (26, 806630), (44, 476645), (52, 403315), (55, 381316), (65, 322652), (110, 190658), (130, 161326), (143, 146660), (220, 95329), (260, 80663), (286, 73330), (572, 36665), (715, 29332), (1430, 14666), (2860, 7333)]