406980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:58

約数の個数: 144

約数和(自身を含む): 1572480

約数和(自身を除く): 1165500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 19, 20, 21, 28, 30, 34, 35, 36, 38, 42, 45, 51, 57, 60, 63, 68, 70, 76, 84, 85, 90, 95, 102, 105, 114, 119, 126, 133, 140, 153, 170, 171, 180, 190, 204, 210, 228, 238, 252, 255, 266, 285, 306, 315, 323, 340, 342, 357, 380, 399, 420, 476, 510, 532, 570, 595, 612, 630, 646, 665, 684, 714, 765, 798, 855, 969, 1020, 1071, 1140, 1190, 1197, 1260, 1292, 1330, 1428, 1530, 1596, 1615, 1710, 1785, 1938, 1995, 2142, 2261, 2380, 2394, 2660, 2907, 3060, 3230, 3420, 3570, 3876, 3990, 4284, 4522, 4788, 4845, 5355, 5814, 5985, 6460, 6783, 7140, 7980, 9044, 9690, 10710, 11305, 11628, 11970, 13566, 14535, 19380, 20349, 21420, 22610, 23940, 27132, 29070, 33915, 40698, 45220, 58140, 67830, 81396, 101745, 135660, 203490, 406980]

約数ペア:

[(1, 406980), (2, 203490), (3, 135660), (4, 101745), (5, 81396), (6, 67830), (7, 58140), (9, 45220), (10, 40698), (12, 33915), (14, 29070), (15, 27132), (17, 23940), (18, 22610), (19, 21420), (20, 20349), (21, 19380), (28, 14535), (30, 13566), (34, 11970), (35, 11628), (36, 11305), (38, 10710), (42, 9690), (45, 9044), (51, 7980), (57, 7140), (60, 6783), (63, 6460), (68, 5985), (70, 5814), (76, 5355), (84, 4845), (85, 4788), (90, 4522), (95, 4284), (102, 3990), (105, 3876), (114, 3570), (119, 3420), (126, 3230), (133, 3060), (140, 2907), (153, 2660), (170, 2394), (171, 2380), (180, 2261), (190, 2142), (204, 1995), (210, 1938), (228, 1785), (238, 1710), (252, 1615), (255, 1596), (266, 1530), (285, 1428), (306, 1330), (315, 1292), (323, 1260), (340, 1197), (342, 1190), (357, 1140), (380, 1071), (399, 1020), (420, 969), (476, 855), (510, 798), (532, 765), (570, 714), (595, 684), (612, 665), (630, 646)]