19857530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 49641984

約数和(自身を除く): 29784454

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 37, 41, 55, 70, 74, 77, 82, 85, 110, 119, 154, 170, 185, 187, 205, 238, 259, 287, 370, 374, 385, 407, 410, 451, 518, 574, 595, 629, 697, 770, 814, 902, 935, 1190, 1258, 1295, 1309, 1394, 1435, 1517, 1870, 2035, 2255, 2590, 2618, 2849, 2870, 3034, 3145, 3157, 3485, 4070, 4403, 4510, 4879, 5698, 6290, 6314, 6545, 6919, 6970, 7585, 7667, 8806, 9758, 10619, 13090, 13838, 14245, 15170, 15334, 15785, 16687, 21238, 22015, 24395, 25789, 28490, 31570, 33374, 34595, 38335, 44030, 48433, 48790, 51578, 53095, 53669, 69190, 76670, 83435, 96866, 106190, 107338, 116809, 128945, 166870, 180523, 233618, 242165, 257890, 268345, 283679, 361046, 484330, 536690, 567358, 584045, 902615, 1168090, 1418395, 1805230, 1985753, 2836790, 3971506, 9928765, 19857530]

約数ペア:

[(1, 19857530), (2, 9928765), (5, 3971506), (7, 2836790), (10, 1985753), (11, 1805230), (14, 1418395), (17, 1168090), (22, 902615), (34, 584045), (35, 567358), (37, 536690), (41, 484330), (55, 361046), (70, 283679), (74, 268345), (77, 257890), (82, 242165), (85, 233618), (110, 180523), (119, 166870), (154, 128945), (170, 116809), (185, 107338), (187, 106190), (205, 96866), (238, 83435), (259, 76670), (287, 69190), (370, 53669), (374, 53095), (385, 51578), (407, 48790), (410, 48433), (451, 44030), (518, 38335), (574, 34595), (595, 33374), (629, 31570), (697, 28490), (770, 25789), (814, 24395), (902, 22015), (935, 21238), (1190, 16687), (1258, 15785), (1295, 15334), (1309, 15170), (1394, 14245), (1435, 13838), (1517, 13090), (1870, 10619), (2035, 9758), (2255, 8806), (2590, 7667), (2618, 7585), (2849, 6970), (2870, 6919), (3034, 6545), (3145, 6314), (3157, 6290), (3485, 5698), (4070, 4879), (4403, 4510)]