81691630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 163127520

約数和(自身を除く): 81435890

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 289, 391, 578, 782, 1229, 1445, 1955, 2458, 2890, 3910, 6145, 6647, 12290, 13294, 20893, 28267, 33235, 41786, 56534, 66470, 104465, 141335, 208930, 282670, 355181, 480539, 710362, 961078, 1775905, 2402695, 3551810, 4805390, 8169163, 16338326, 40845815, 81691630]

約数ペア:

[(1, 81691630), (2, 40845815), (5, 16338326), (10, 8169163), (17, 4805390), (23, 3551810), (34, 2402695), (46, 1775905), (85, 961078), (115, 710362), (170, 480539), (230, 355181), (289, 282670), (391, 208930), (578, 141335), (782, 104465), (1229, 66470), (1445, 56534), (1955, 41786), (2458, 33235), (2890, 28267), (3910, 20893), (6145, 13294), (6647, 12290)]