31620780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 120

約数和(自身を含む): 100623600

約数和(自身を除く): 69002820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 131, 135, 149, 162, 180, 262, 270, 298, 324, 393, 405, 447, 524, 540, 596, 655, 745, 786, 810, 894, 1179, 1310, 1341, 1490, 1572, 1620, 1788, 1965, 2235, 2358, 2620, 2682, 2980, 3537, 3930, 4023, 4470, 4716, 5364, 5895, 6705, 7074, 7860, 8046, 8940, 10611, 11790, 12069, 13410, 14148, 16092, 17685, 19519, 20115, 21222, 23580, 24138, 26820, 35370, 39038, 40230, 42444, 48276, 53055, 58557, 60345, 70740, 78076, 80460, 97595, 106110, 117114, 120690, 175671, 195190, 212220, 234228, 241380, 292785, 351342, 390380, 527013, 585570, 702684, 878355, 1054026, 1171140, 1581039, 1756710, 2108052, 2635065, 3162078, 3513420, 5270130, 6324156, 7905195, 10540260, 15810390, 31620780]

約数ペア:

[(1, 31620780), (2, 15810390), (3, 10540260), (4, 7905195), (5, 6324156), (6, 5270130), (9, 3513420), (10, 3162078), (12, 2635065), (15, 2108052), (18, 1756710), (20, 1581039), (27, 1171140), (30, 1054026), (36, 878355), (45, 702684), (54, 585570), (60, 527013), (81, 390380), (90, 351342), (108, 292785), (131, 241380), (135, 234228), (149, 212220), (162, 195190), (180, 175671), (262, 120690), (270, 117114), (298, 106110), (324, 97595), (393, 80460), (405, 78076), (447, 70740), (524, 60345), (540, 58557), (596, 53055), (655, 48276), (745, 42444), (786, 40230), (810, 39038), (894, 35370), (1179, 26820), (1310, 24138), (1341, 23580), (1490, 21222), (1572, 20115), (1620, 19519), (1788, 17685), (1965, 16092), (2235, 14148), (2358, 13410), (2620, 12069), (2682, 11790), (2980, 10611), (3537, 8940), (3930, 8046), (4023, 7860), (4470, 7074), (4716, 6705), (5364, 5895)]