48005780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 109133640

約数和(自身を除く): 61127860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 109, 122, 190, 218, 244, 305, 361, 380, 436, 545, 610, 722, 1090, 1159, 1220, 1444, 1805, 2071, 2180, 2318, 3610, 4142, 4636, 5795, 6649, 7220, 8284, 10355, 11590, 13298, 20710, 22021, 23180, 26596, 33245, 39349, 41420, 44042, 66490, 78698, 88084, 110105, 126331, 132980, 157396, 196745, 220210, 252662, 393490, 440420, 505324, 631655, 786980, 1263310, 2400289, 2526620, 4800578, 9601156, 12001445, 24002890, 48005780]

約数ペア:

[(1, 48005780), (2, 24002890), (4, 12001445), (5, 9601156), (10, 4800578), (19, 2526620), (20, 2400289), (38, 1263310), (61, 786980), (76, 631655), (95, 505324), (109, 440420), (122, 393490), (190, 252662), (218, 220210), (244, 196745), (305, 157396), (361, 132980), (380, 126331), (436, 110105), (545, 88084), (610, 78698), (722, 66490), (1090, 44042), (1159, 41420), (1220, 39349), (1444, 33245), (1805, 26596), (2071, 23180), (2180, 22021), (2318, 20710), (3610, 13298), (4142, 11590), (4636, 10355), (5795, 8284), (6649, 7220)]