18990911556

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{373}}^1\times {\mathrm{30091}}^1$

素因数の和:30521

約数の個数: 72

約数和(自身を含む): 49159254144

約数和(自身を除く): 30168342588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 373, 423, 564, 746, 846, 1119, 1492, 1692, 2238, 3357, 4476, 6714, 13428, 17531, 30091, 35062, 52593, 60182, 70124, 90273, 105186, 120364, 157779, 180546, 210372, 270819, 315558, 361092, 541638, 631116, 1083276, 1414277, 2828554, 4242831, 5657108, 8485662, 11223943, 12728493, 16971324, 22447886, 25456986, 33671829, 44895772, 50913972, 67343658, 101015487, 134687316, 202030974, 404061948, 527525321, 1055050642, 1582575963, 2110101284, 3165151926, 4747727889, 6330303852, 9495455778, 18990911556]

約数ペア:

[(1, 18990911556), (2, 9495455778), (3, 6330303852), (4, 4747727889), (6, 3165151926), (9, 2110101284), (12, 1582575963), (18, 1055050642), (36, 527525321), (47, 404061948), (94, 202030974), (141, 134687316), (188, 101015487), (282, 67343658), (373, 50913972), (423, 44895772), (564, 33671829), (746, 25456986), (846, 22447886), (1119, 16971324), (1492, 12728493), (1692, 11223943), (2238, 8485662), (3357, 5657108), (4476, 4242831), (6714, 2828554), (13428, 1414277), (17531, 1083276), (30091, 631116), (35062, 541638), (52593, 361092), (60182, 315558), (70124, 270819), (90273, 210372), (105186, 180546), (120364, 157779)]