13181820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:435

約数の個数: 96

約数和(自身を含む): 40212480

約数和(自身を除く): 27030660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 373, 380, 465, 570, 589, 620, 746, 930, 1119, 1140, 1178, 1492, 1767, 1860, 1865, 2238, 2356, 2945, 3534, 3730, 4476, 5595, 5890, 7068, 7087, 7460, 8835, 11190, 11563, 11780, 14174, 17670, 21261, 22380, 23126, 28348, 34689, 35340, 35435, 42522, 46252, 57815, 69378, 70870, 85044, 106305, 115630, 138756, 141740, 173445, 212610, 219697, 231260, 346890, 425220, 439394, 659091, 693780, 878788, 1098485, 1318182, 2196970, 2636364, 3295455, 4393940, 6590910, 13181820]

約数ペア:

[(1, 13181820), (2, 6590910), (3, 4393940), (4, 3295455), (5, 2636364), (6, 2196970), (10, 1318182), (12, 1098485), (15, 878788), (19, 693780), (20, 659091), (30, 439394), (31, 425220), (38, 346890), (57, 231260), (60, 219697), (62, 212610), (76, 173445), (93, 141740), (95, 138756), (114, 115630), (124, 106305), (155, 85044), (186, 70870), (190, 69378), (228, 57815), (285, 46252), (310, 42522), (372, 35435), (373, 35340), (380, 34689), (465, 28348), (570, 23126), (589, 22380), (620, 21261), (746, 17670), (930, 14174), (1119, 11780), (1140, 11563), (1178, 11190), (1492, 8835), (1767, 7460), (1860, 7087), (1865, 7068), (2238, 5890), (2356, 5595), (2945, 4476), (3534, 3730)]