20657103675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{373}}^1\times {\mathrm{719}}^1$

素因数の和:1197

約数の個数: 96

約数和(自身を含む): 37397606400

約数和(自身を除く): 16740502725

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 79, 195, 237, 325, 373, 395, 719, 975, 1027, 1119, 1185, 1865, 1975, 2157, 3081, 3595, 4849, 5135, 5595, 5925, 9325, 9347, 10785, 14547, 15405, 17975, 24245, 25675, 27975, 28041, 29467, 46735, 53925, 56801, 72735, 77025, 88401, 121225, 140205, 147335, 170403, 233675, 268187, 284005, 363675, 383071, 442005, 701025, 736675, 738413, 804561, 852015, 1149213, 1340935, 1420025, 1915355, 2210025, 2215239, 3486431, 3692065, 4022805, 4260075, 5746065, 6704675, 9576775, 10459293, 11076195, 17432155, 18460325, 20114025, 21186773, 28730325, 52296465, 55380975, 63560319, 87160775, 105933865, 261482325, 275428049, 317801595, 529669325, 826284147, 1377140245, 1589007975, 4131420735, 6885701225, 20657103675]

約数ペア:

[(1, 20657103675), (3, 6885701225), (5, 4131420735), (13, 1589007975), (15, 1377140245), (25, 826284147), (39, 529669325), (65, 317801595), (75, 275428049), (79, 261482325), (195, 105933865), (237, 87160775), (325, 63560319), (373, 55380975), (395, 52296465), (719, 28730325), (975, 21186773), (1027, 20114025), (1119, 18460325), (1185, 17432155), (1865, 11076195), (1975, 10459293), (2157, 9576775), (3081, 6704675), (3595, 5746065), (4849, 4260075), (5135, 4022805), (5595, 3692065), (5925, 3486431), (9325, 2215239), (9347, 2210025), (10785, 1915355), (14547, 1420025), (15405, 1340935), (17975, 1149213), (24245, 852015), (25675, 804561), (27975, 738413), (28041, 736675), (29467, 701025), (46735, 442005), (53925, 383071), (56801, 363675), (72735, 284005), (77025, 268187), (88401, 233675), (121225, 170403), (140205, 147335)]