20857551052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{30197}}^1$

素因数の和:30610

約数の個数: 48

約数和(自身を含む): 40484646720

約数和(自身を除く): 19627095668

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 359, 481, 718, 962, 1436, 1924, 4667, 9334, 13283, 18668, 26566, 30197, 53132, 60394, 120788, 172679, 345358, 392561, 690716, 785122, 1117289, 1570244, 2234578, 4469156, 10840723, 14524757, 21681446, 29049514, 43362892, 58099028, 140929399, 281858798, 401106751, 563717596, 802213502, 1604427004, 5214387763, 10428775526, 20857551052]

約数ペア:

[(1, 20857551052), (2, 10428775526), (4, 5214387763), (13, 1604427004), (26, 802213502), (37, 563717596), (52, 401106751), (74, 281858798), (148, 140929399), (359, 58099028), (481, 43362892), (718, 29049514), (962, 21681446), (1436, 14524757), (1924, 10840723), (4667, 4469156), (9334, 2234578), (13283, 1570244), (18668, 1117289), (26566, 785122), (30197, 690716), (53132, 392561), (60394, 345358), (120788, 172679)]