20157710320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{738919}}^1$

素因数の和:738974

約数の個数: 80

約数和(自身を含む): 52776622080

約数和(自身を除く): 32618911760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 27280, 738919, 1477838, 2955676, 3694595, 5911352, 7389190, 8128109, 11822704, 14778380, 16256218, 22906489, 29556760, 32512436, 40640545, 45812978, 59113520, 65024872, 81281090, 91625956, 114532445, 130049744, 162562180, 183251912, 229064890, 251971379, 325124360, 366503824, 458129780, 503942758, 650248720, 916259560, 1007885516, 1259856895, 1832519120, 2015771032, 2519713790, 4031542064, 5039427580, 10078855160, 20157710320]

約数ペア:

[(1, 20157710320), (2, 10078855160), (4, 5039427580), (5, 4031542064), (8, 2519713790), (10, 2015771032), (11, 1832519120), (16, 1259856895), (20, 1007885516), (22, 916259560), (31, 650248720), (40, 503942758), (44, 458129780), (55, 366503824), (62, 325124360), (80, 251971379), (88, 229064890), (110, 183251912), (124, 162562180), (155, 130049744), (176, 114532445), (220, 91625956), (248, 81281090), (310, 65024872), (341, 59113520), (440, 45812978), (496, 40640545), (620, 32512436), (682, 29556760), (880, 22906489), (1240, 16256218), (1364, 14778380), (1705, 11822704), (2480, 8128109), (2728, 7389190), (3410, 5911352), (5456, 3694595), (6820, 2955676), (13640, 1477838), (27280, 738919)]