80537380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 222469632

約数和(自身を除く): 141932252

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 241, 245, 308, 310, 341, 385, 434, 482, 490, 539, 620, 682, 770, 868, 964, 980, 1078, 1085, 1205, 1364, 1519, 1540, 1687, 1705, 2156, 2170, 2387, 2410, 2651, 2695, 3038, 3374, 3410, 4340, 4774, 4820, 5302, 5390, 6076, 6748, 6820, 7471, 7595, 8435, 9548, 10604, 10780, 11809, 11935, 13255, 14942, 15190, 16709, 16870, 18557, 23618, 23870, 26510, 29884, 30380, 33418, 33740, 37114, 37355, 47236, 47740, 52297, 53020, 59045, 66836, 74228, 74710, 82181, 83545, 92785, 104594, 118090, 129899, 149420, 164362, 167090, 185570, 209188, 236180, 259798, 261485, 328724, 334180, 366079, 371140, 410905, 519596, 522970, 575267, 649495, 732158, 821810, 1045940, 1150534, 1298990, 1464316, 1643620, 1830395, 2301068, 2597980, 2876335, 3660790, 4026869, 5752670, 7321580, 8053738, 11505340, 16107476, 20134345, 40268690, 80537380]

約数ペア:

[(1, 80537380), (2, 40268690), (4, 20134345), (5, 16107476), (7, 11505340), (10, 8053738), (11, 7321580), (14, 5752670), (20, 4026869), (22, 3660790), (28, 2876335), (31, 2597980), (35, 2301068), (44, 1830395), (49, 1643620), (55, 1464316), (62, 1298990), (70, 1150534), (77, 1045940), (98, 821810), (110, 732158), (124, 649495), (140, 575267), (154, 522970), (155, 519596), (196, 410905), (217, 371140), (220, 366079), (241, 334180), (245, 328724), (308, 261485), (310, 259798), (341, 236180), (385, 209188), (434, 185570), (482, 167090), (490, 164362), (539, 149420), (620, 129899), (682, 118090), (770, 104594), (868, 92785), (964, 83545), (980, 82181), (1078, 74710), (1085, 74228), (1205, 66836), (1364, 59045), (1519, 53020), (1540, 52297), (1687, 47740), (1705, 47236), (2156, 37355), (2170, 37114), (2387, 33740), (2410, 33418), (2651, 30380), (2695, 29884), (3038, 26510), (3374, 23870), (3410, 23618), (4340, 18557), (4774, 16870), (4820, 16709), (5302, 15190), (5390, 14942), (6076, 13255), (6748, 11935), (6820, 11809), (7471, 10780), (7595, 10604), (8435, 9548)]