421566195

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 728792064

約数和(自身を除く): 307225869

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 157, 181, 215, 345, 471, 543, 645, 785, 905, 989, 2355, 2715, 2967, 3611, 4163, 4945, 6751, 7783, 10833, 12489, 14835, 18055, 20253, 20815, 23349, 28417, 33755, 38915, 54165, 62445, 85251, 101265, 116745, 142085, 155273, 179009, 426255, 465819, 537027, 653591, 776365, 895045, 1221931, 1960773, 2329095, 2685135, 3267955, 3665793, 6109655, 9803865, 18328965, 28104413, 84313239, 140522065, 421566195]

約数ペア:

[(1, 421566195), (3, 140522065), (5, 84313239), (15, 28104413), (23, 18328965), (43, 9803865), (69, 6109655), (115, 3665793), (129, 3267955), (157, 2685135), (181, 2329095), (215, 1960773), (345, 1221931), (471, 895045), (543, 776365), (645, 653591), (785, 537027), (905, 465819), (989, 426255), (2355, 179009), (2715, 155273), (2967, 142085), (3611, 116745), (4163, 101265), (4945, 85251), (6751, 62445), (7783, 54165), (10833, 38915), (12489, 33755), (14835, 28417), (18055, 23349), (20253, 20815)]