145531980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2371}}^1$

素因数の和:2428

約数の個数: 144

約数和(自身を含む): 497323008

約数和(自身を除く): 351791028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 372, 396, 465, 495, 558, 620, 660, 682, 930, 990, 1023, 1116, 1364, 1395, 1705, 1860, 1980, 2046, 2371, 2790, 3069, 3410, 4092, 4742, 5115, 5580, 6138, 6820, 7113, 9484, 10230, 11855, 12276, 14226, 15345, 20460, 21339, 23710, 26081, 28452, 30690, 35565, 42678, 47420, 52162, 61380, 71130, 73501, 78243, 85356, 104324, 106695, 130405, 142260, 147002, 156486, 213390, 220503, 234729, 260810, 294004, 312972, 367505, 391215, 426780, 441006, 469458, 521620, 661509, 735010, 782430, 808511, 882012, 938916, 1102515, 1173645, 1323018, 1470020, 1564860, 1617022, 2205030, 2347290, 2425533, 2646036, 3234044, 3307545, 4042555, 4410060, 4694580, 4851066, 6615090, 7276599, 8085110, 9702132, 12127665, 13230180, 14553198, 16170220, 24255330, 29106396, 36382995, 48510660, 72765990, 145531980]

約数ペア:

[(1, 145531980), (2, 72765990), (3, 48510660), (4, 36382995), (5, 29106396), (6, 24255330), (9, 16170220), (10, 14553198), (11, 13230180), (12, 12127665), (15, 9702132), (18, 8085110), (20, 7276599), (22, 6615090), (30, 4851066), (31, 4694580), (33, 4410060), (36, 4042555), (44, 3307545), (45, 3234044), (55, 2646036), (60, 2425533), (62, 2347290), (66, 2205030), (90, 1617022), (93, 1564860), (99, 1470020), (110, 1323018), (124, 1173645), (132, 1102515), (155, 938916), (165, 882012), (180, 808511), (186, 782430), (198, 735010), (220, 661509), (279, 521620), (310, 469458), (330, 441006), (341, 426780), (372, 391215), (396, 367505), (465, 312972), (495, 294004), (558, 260810), (620, 234729), (660, 220503), (682, 213390), (930, 156486), (990, 147002), (1023, 142260), (1116, 130405), (1364, 106695), (1395, 104324), (1705, 85356), (1860, 78243), (1980, 73501), (2046, 71130), (2371, 61380), (2790, 52162), (3069, 47420), (3410, 42678), (4092, 35565), (4742, 30690), (5115, 28452), (5580, 26081), (6138, 23710), (6820, 21339), (7113, 20460), (9484, 15345), (10230, 14226), (11855, 12276)]