19219640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^2$

素因数の和:82

約数の個数: 96

約数和(自身を含む): 50200560

約数和(自身を除く): 30980920

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 121, 152, 190, 209, 220, 242, 361, 380, 418, 440, 484, 605, 722, 760, 836, 968, 1045, 1210, 1331, 1444, 1672, 1805, 2090, 2299, 2420, 2662, 2888, 3610, 3971, 4180, 4598, 4840, 5324, 6655, 7220, 7942, 8360, 9196, 10648, 11495, 13310, 14440, 15884, 18392, 19855, 22990, 25289, 26620, 31768, 39710, 43681, 45980, 50578, 53240, 79420, 87362, 91960, 101156, 126445, 158840, 174724, 202312, 218405, 252890, 349448, 436810, 480491, 505780, 873620, 960982, 1011560, 1747240, 1921964, 2402455, 3843928, 4804910, 9609820, 19219640]

約数ペア:

[(1, 19219640), (2, 9609820), (4, 4804910), (5, 3843928), (8, 2402455), (10, 1921964), (11, 1747240), (19, 1011560), (20, 960982), (22, 873620), (38, 505780), (40, 480491), (44, 436810), (55, 349448), (76, 252890), (88, 218405), (95, 202312), (110, 174724), (121, 158840), (152, 126445), (190, 101156), (209, 91960), (220, 87362), (242, 79420), (361, 53240), (380, 50578), (418, 45980), (440, 43681), (484, 39710), (605, 31768), (722, 26620), (760, 25289), (836, 22990), (968, 19855), (1045, 18392), (1210, 15884), (1331, 14440), (1444, 13310), (1672, 11495), (1805, 10648), (2090, 9196), (2299, 8360), (2420, 7942), (2662, 7220), (2888, 6655), (3610, 5324), (3971, 4840), (4180, 4598)]