19660147216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1117}}^1\times {\mathrm{64709}}^1$

素因数の和:65851

約数の個数: 40

約数和(自身を含む): 40368945240

約数和(自身を除く): 20708798024

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1117, 2234, 4468, 8936, 17872, 18989, 37978, 64709, 75956, 129418, 151912, 258836, 303824, 517672, 1035344, 1100053, 2200106, 4400212, 8800424, 17600848, 72279953, 144559906, 289119812, 578239624, 1156479248, 1228759201, 2457518402, 4915036804, 9830073608, 19660147216]

約数ペア:

[(1, 19660147216), (2, 9830073608), (4, 4915036804), (8, 2457518402), (16, 1228759201), (17, 1156479248), (34, 578239624), (68, 289119812), (136, 144559906), (272, 72279953), (1117, 17600848), (2234, 8800424), (4468, 4400212), (8936, 2200106), (17872, 1100053), (18989, 1035344), (37978, 517672), (64709, 303824), (75956, 258836), (129418, 151912)]