641583460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{3617}}^1$

素因数の和:3821

約数の個数: 72

約数和(自身を含む): 1576391544

約数和(自身を除く): 934808084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 181, 196, 245, 362, 490, 724, 905, 980, 1267, 1810, 2534, 3617, 3620, 5068, 6335, 7234, 8869, 12670, 14468, 17738, 18085, 25319, 25340, 35476, 36170, 44345, 50638, 72340, 88690, 101276, 126595, 177233, 177380, 253190, 354466, 506380, 654677, 708932, 886165, 1309354, 1772330, 2618708, 3273385, 3544660, 4582739, 6546770, 9165478, 13093540, 18330956, 22913695, 32079173, 45827390, 64158346, 91654780, 128316692, 160395865, 320791730, 641583460]

約数ペア:

[(1, 641583460), (2, 320791730), (4, 160395865), (5, 128316692), (7, 91654780), (10, 64158346), (14, 45827390), (20, 32079173), (28, 22913695), (35, 18330956), (49, 13093540), (70, 9165478), (98, 6546770), (140, 4582739), (181, 3544660), (196, 3273385), (245, 2618708), (362, 1772330), (490, 1309354), (724, 886165), (905, 708932), (980, 654677), (1267, 506380), (1810, 354466), (2534, 253190), (3617, 177380), (3620, 177233), (5068, 126595), (6335, 101276), (7234, 88690), (8869, 72340), (12670, 50638), (14468, 44345), (17738, 36170), (18085, 35476), (25319, 25340)]