51131920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:209

約数の個数: 160

約数和(自身を含む): 148490496

約数和(自身を除く): 97358576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 41, 56, 68, 70, 80, 82, 85, 112, 119, 131, 136, 140, 164, 170, 205, 238, 262, 272, 280, 287, 328, 340, 410, 476, 524, 560, 574, 595, 655, 656, 680, 697, 820, 917, 952, 1048, 1148, 1190, 1310, 1360, 1394, 1435, 1640, 1834, 1904, 2096, 2227, 2296, 2380, 2620, 2788, 2870, 3280, 3485, 3668, 4454, 4585, 4592, 4760, 4879, 5240, 5371, 5576, 5740, 6970, 7336, 8908, 9170, 9520, 9758, 10480, 10742, 11135, 11152, 11480, 13940, 14672, 15589, 17816, 18340, 19516, 21484, 22270, 22960, 24395, 26855, 27880, 31178, 35632, 36680, 37597, 39032, 42968, 44540, 48790, 53710, 55760, 62356, 73360, 75194, 77945, 78064, 85936, 89080, 91307, 97580, 107420, 124712, 150388, 155890, 178160, 182614, 187985, 195160, 214840, 249424, 300776, 311780, 365228, 375970, 390320, 429680, 456535, 601552, 623560, 639149, 730456, 751940, 913070, 1247120, 1278298, 1460912, 1503880, 1826140, 2556596, 3007760, 3195745, 3652280, 5113192, 6391490, 7304560, 10226384, 12782980, 25565960, 51131920]

約数ペア:

[(1, 51131920), (2, 25565960), (4, 12782980), (5, 10226384), (7, 7304560), (8, 6391490), (10, 5113192), (14, 3652280), (16, 3195745), (17, 3007760), (20, 2556596), (28, 1826140), (34, 1503880), (35, 1460912), (40, 1278298), (41, 1247120), (56, 913070), (68, 751940), (70, 730456), (80, 639149), (82, 623560), (85, 601552), (112, 456535), (119, 429680), (131, 390320), (136, 375970), (140, 365228), (164, 311780), (170, 300776), (205, 249424), (238, 214840), (262, 195160), (272, 187985), (280, 182614), (287, 178160), (328, 155890), (340, 150388), (410, 124712), (476, 107420), (524, 97580), (560, 91307), (574, 89080), (595, 85936), (655, 78064), (656, 77945), (680, 75194), (697, 73360), (820, 62356), (917, 55760), (952, 53710), (1048, 48790), (1148, 44540), (1190, 42968), (1310, 39032), (1360, 37597), (1394, 36680), (1435, 35632), (1640, 31178), (1834, 27880), (1904, 26855), (2096, 24395), (2227, 22960), (2296, 22270), (2380, 21484), (2620, 19516), (2788, 18340), (2870, 17816), (3280, 15589), (3485, 14672), (3668, 13940), (4454, 11480), (4585, 11152), (4592, 11135), (4760, 10742), (4879, 10480), (5240, 9758), (5371, 9520), (5576, 9170), (5740, 8908), (6970, 7336)]