64704380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{14639}}^1$

素因数の和:14678

約数の個数: 48

約数和(自身を含む): 154949760

約数和(自身を除く): 90245380

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 14639, 29278, 58556, 73195, 146390, 190307, 248863, 292780, 380614, 497726, 761228, 951535, 995452, 1244315, 1903070, 2488630, 3235219, 3806140, 4977260, 6470438, 12940876, 16176095, 32352190, 64704380]

約数ペア:

[(1, 64704380), (2, 32352190), (4, 16176095), (5, 12940876), (10, 6470438), (13, 4977260), (17, 3806140), (20, 3235219), (26, 2488630), (34, 1903070), (52, 1244315), (65, 995452), (68, 951535), (85, 761228), (130, 497726), (170, 380614), (221, 292780), (260, 248863), (340, 190307), (442, 146390), (884, 73195), (1105, 58556), (2210, 29278), (4420, 14639)]