18363880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 44222400

約数和(自身を除く): 25858520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 331, 365, 380, 584, 662, 730, 760, 1324, 1387, 1460, 1655, 2648, 2774, 2920, 3310, 5548, 6289, 6620, 6935, 11096, 12578, 13240, 13870, 24163, 25156, 27740, 31445, 48326, 50312, 55480, 62890, 96652, 120815, 125780, 193304, 241630, 251560, 459097, 483260, 918194, 966520, 1836388, 2295485, 3672776, 4590970, 9181940, 18363880]

約数ペア:

[(1, 18363880), (2, 9181940), (4, 4590970), (5, 3672776), (8, 2295485), (10, 1836388), (19, 966520), (20, 918194), (38, 483260), (40, 459097), (73, 251560), (76, 241630), (95, 193304), (146, 125780), (152, 120815), (190, 96652), (292, 62890), (331, 55480), (365, 50312), (380, 48326), (584, 31445), (662, 27740), (730, 25156), (760, 24163), (1324, 13870), (1387, 13240), (1460, 12578), (1655, 11096), (2648, 6935), (2774, 6620), (2920, 6289), (3310, 5548)]