280015010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1547

約数の個数: 64

約数和(自身を含む): 578534400

約数和(自身を除く): 298519390

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 61, 110, 122, 145, 290, 305, 319, 610, 638, 671, 1342, 1439, 1595, 1769, 2878, 3190, 3355, 3538, 6710, 7195, 8845, 14390, 15829, 17690, 19459, 31658, 38918, 41731, 79145, 83462, 87779, 97295, 158290, 175558, 194590, 208655, 417310, 438895, 459041, 877790, 918082, 965569, 1931138, 2295205, 2545591, 4590410, 4827845, 5091182, 9655690, 12727955, 25455910, 28001501, 56003002, 140007505, 280015010]

約数ペア:

[(1, 280015010), (2, 140007505), (5, 56003002), (10, 28001501), (11, 25455910), (22, 12727955), (29, 9655690), (55, 5091182), (58, 4827845), (61, 4590410), (110, 2545591), (122, 2295205), (145, 1931138), (290, 965569), (305, 918082), (319, 877790), (610, 459041), (638, 438895), (671, 417310), (1342, 208655), (1439, 194590), (1595, 175558), (1769, 158290), (2878, 97295), (3190, 87779), (3355, 83462), (3538, 79145), (6710, 41731), (7195, 38918), (8845, 31658), (14390, 19459), (15829, 17690)]