20199421785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1\times {\mathrm{1451}}^1$

素因数の和:1806

約数の個数: 64

約数和(自身を含む): 33561133056

約数和(自身を除く): 13361711271

約数列:

[1, 3, 5, 15, 43, 113, 129, 191, 215, 339, 565, 573, 645, 955, 1451, 1695, 2865, 4353, 4859, 7255, 8213, 14577, 21583, 21765, 24295, 24639, 41065, 62393, 64749, 72885, 107915, 123195, 163963, 187179, 277141, 311965, 323745, 491889, 819815, 831423, 928069, 935895, 1385705, 2459445, 2784207, 4157115, 4640345, 7050409, 11917063, 13921035, 21151227, 31316933, 35252045, 35751189, 59585315, 93950799, 105756135, 156584665, 178755945, 469753995, 1346628119, 4039884357, 6733140595, 20199421785]

約数ペア:

[(1, 20199421785), (3, 6733140595), (5, 4039884357), (15, 1346628119), (43, 469753995), (113, 178755945), (129, 156584665), (191, 105756135), (215, 93950799), (339, 59585315), (565, 35751189), (573, 35252045), (645, 31316933), (955, 21151227), (1451, 13921035), (1695, 11917063), (2865, 7050409), (4353, 4640345), (4859, 4157115), (7255, 2784207), (8213, 2459445), (14577, 1385705), (21583, 935895), (21765, 928069), (24295, 831423), (24639, 819815), (41065, 491889), (62393, 323745), (64749, 311965), (72885, 277141), (107915, 187179), (123195, 163963)]