648688920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{977}}^1$

素因数の和:1505

約数の個数: 128

約数和(自身を含む): 2129379840

約数和(自身を除く): 1480690920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 503, 660, 977, 1006, 1320, 1509, 1954, 2012, 2515, 2931, 3018, 3908, 4024, 4885, 5030, 5533, 5862, 6036, 7545, 7816, 9770, 10060, 10747, 11066, 11724, 12072, 14655, 15090, 16599, 19540, 20120, 21494, 22132, 23448, 27665, 29310, 30180, 32241, 33198, 39080, 42988, 44264, 53735, 55330, 58620, 60360, 64482, 66396, 82995, 85976, 107470, 110660, 117240, 128964, 132792, 161205, 165990, 214940, 221320, 257928, 322410, 331980, 429880, 491431, 644820, 663960, 982862, 1289640, 1474293, 1965724, 2457155, 2948586, 3931448, 4914310, 5405741, 5897172, 7371465, 9828620, 10811482, 11794344, 14742930, 16217223, 19657240, 21622964, 27028705, 29485860, 32434446, 43245928, 54057410, 58971720, 64868892, 81086115, 108114820, 129737784, 162172230, 216229640, 324344460, 648688920]

約数ペア:

[(1, 648688920), (2, 324344460), (3, 216229640), (4, 162172230), (5, 129737784), (6, 108114820), (8, 81086115), (10, 64868892), (11, 58971720), (12, 54057410), (15, 43245928), (20, 32434446), (22, 29485860), (24, 27028705), (30, 21622964), (33, 19657240), (40, 16217223), (44, 14742930), (55, 11794344), (60, 10811482), (66, 9828620), (88, 7371465), (110, 5897172), (120, 5405741), (132, 4914310), (165, 3931448), (220, 2948586), (264, 2457155), (330, 1965724), (440, 1474293), (503, 1289640), (660, 982862), (977, 663960), (1006, 644820), (1320, 491431), (1509, 429880), (1954, 331980), (2012, 322410), (2515, 257928), (2931, 221320), (3018, 214940), (3908, 165990), (4024, 161205), (4885, 132792), (5030, 128964), (5533, 117240), (5862, 110660), (6036, 107470), (7545, 85976), (7816, 82995), (9770, 66396), (10060, 64482), (10747, 60360), (11066, 58620), (11724, 55330), (12072, 53735), (14655, 44264), (15090, 42988), (16599, 39080), (19540, 33198), (20120, 32241), (21494, 30180), (22132, 29310), (23448, 27665)]