18735480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{733}}^1$

素因数の和:821

約数の個数: 96

約数和(自身を含む): 61832160

約数和(自身を除く): 43096680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 733, 852, 1065, 1278, 1420, 1466, 1704, 2130, 2199, 2556, 2840, 2932, 3195, 3665, 4260, 4398, 5112, 5864, 6390, 6597, 7330, 8520, 8796, 10995, 12780, 13194, 14660, 17592, 21990, 25560, 26388, 29320, 32985, 43980, 52043, 52776, 65970, 87960, 104086, 131940, 156129, 208172, 260215, 263880, 312258, 416344, 468387, 520430, 624516, 780645, 936774, 1040860, 1249032, 1561290, 1873548, 2081720, 2341935, 3122580, 3747096, 4683870, 6245160, 9367740, 18735480]

約数ペア:

[(1, 18735480), (2, 9367740), (3, 6245160), (4, 4683870), (5, 3747096), (6, 3122580), (8, 2341935), (9, 2081720), (10, 1873548), (12, 1561290), (15, 1249032), (18, 1040860), (20, 936774), (24, 780645), (30, 624516), (36, 520430), (40, 468387), (45, 416344), (60, 312258), (71, 263880), (72, 260215), (90, 208172), (120, 156129), (142, 131940), (180, 104086), (213, 87960), (284, 65970), (355, 52776), (360, 52043), (426, 43980), (568, 32985), (639, 29320), (710, 26388), (733, 25560), (852, 21990), (1065, 17592), (1278, 14660), (1420, 13194), (1466, 12780), (1704, 10995), (2130, 8796), (2199, 8520), (2556, 7330), (2840, 6597), (2932, 6390), (3195, 5864), (3665, 5112), (4260, 4398)]