639540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 144

約数和(自身を含む): 2358720

約数和(自身を除く): 1719180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 19, 20, 22, 30, 33, 34, 36, 38, 44, 45, 51, 55, 57, 60, 66, 68, 76, 85, 90, 95, 99, 102, 110, 114, 132, 153, 165, 170, 171, 180, 187, 190, 198, 204, 209, 220, 228, 255, 285, 306, 323, 330, 340, 342, 374, 380, 396, 418, 495, 510, 561, 570, 612, 627, 646, 660, 684, 748, 765, 836, 855, 935, 969, 990, 1020, 1045, 1122, 1140, 1254, 1292, 1530, 1615, 1683, 1710, 1870, 1881, 1938, 1980, 2090, 2244, 2508, 2805, 2907, 3060, 3135, 3230, 3366, 3420, 3553, 3740, 3762, 3876, 4180, 4845, 5610, 5814, 6270, 6460, 6732, 7106, 7524, 8415, 9405, 9690, 10659, 11220, 11628, 12540, 14212, 14535, 16830, 17765, 18810, 19380, 21318, 29070, 31977, 33660, 35530, 37620, 42636, 53295, 58140, 63954, 71060, 106590, 127908, 159885, 213180, 319770, 639540]

約数ペア:

[(1, 639540), (2, 319770), (3, 213180), (4, 159885), (5, 127908), (6, 106590), (9, 71060), (10, 63954), (11, 58140), (12, 53295), (15, 42636), (17, 37620), (18, 35530), (19, 33660), (20, 31977), (22, 29070), (30, 21318), (33, 19380), (34, 18810), (36, 17765), (38, 16830), (44, 14535), (45, 14212), (51, 12540), (55, 11628), (57, 11220), (60, 10659), (66, 9690), (68, 9405), (76, 8415), (85, 7524), (90, 7106), (95, 6732), (99, 6460), (102, 6270), (110, 5814), (114, 5610), (132, 4845), (153, 4180), (165, 3876), (170, 3762), (171, 3740), (180, 3553), (187, 3420), (190, 3366), (198, 3230), (204, 3135), (209, 3060), (220, 2907), (228, 2805), (255, 2508), (285, 2244), (306, 2090), (323, 1980), (330, 1938), (340, 1881), (342, 1870), (374, 1710), (380, 1683), (396, 1615), (418, 1530), (495, 1292), (510, 1254), (561, 1140), (570, 1122), (612, 1045), (627, 1020), (646, 990), (660, 969), (684, 935), (748, 855), (765, 836)]