65644540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4139}}^1$

素因数の和:4222

約数の個数: 48

約数和(自身を含む): 150927840

約数和(自身を除く): 85283300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4139, 7930, 8278, 15860, 16556, 20695, 41390, 53807, 82780, 107614, 215228, 252479, 269035, 504958, 538070, 1009916, 1076140, 1262395, 2524790, 3282227, 5049580, 6564454, 13128908, 16411135, 32822270, 65644540]

約数ペア:

[(1, 65644540), (2, 32822270), (4, 16411135), (5, 13128908), (10, 6564454), (13, 5049580), (20, 3282227), (26, 2524790), (52, 1262395), (61, 1076140), (65, 1009916), (122, 538070), (130, 504958), (244, 269035), (260, 252479), (305, 215228), (610, 107614), (793, 82780), (1220, 53807), (1586, 41390), (3172, 20695), (3965, 16556), (4139, 15860), (7930, 8278)]