1301690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 64

約数和(自身を含む): 2903040

約数和(自身を除く): 1601350

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 31, 34, 38, 62, 65, 85, 95, 130, 155, 170, 190, 221, 247, 310, 323, 403, 442, 494, 527, 589, 646, 806, 1054, 1105, 1178, 1235, 1615, 2015, 2210, 2470, 2635, 2945, 3230, 4030, 4199, 5270, 5890, 6851, 7657, 8398, 10013, 13702, 15314, 20026, 20995, 34255, 38285, 41990, 50065, 68510, 76570, 100130, 130169, 260338, 650845, 1301690]

約数ペア:

[(1, 1301690), (2, 650845), (5, 260338), (10, 130169), (13, 100130), (17, 76570), (19, 68510), (26, 50065), (31, 41990), (34, 38285), (38, 34255), (62, 20995), (65, 20026), (85, 15314), (95, 13702), (130, 10013), (155, 8398), (170, 7657), (190, 6851), (221, 5890), (247, 5270), (310, 4199), (323, 4030), (403, 3230), (442, 2945), (494, 2635), (527, 2470), (589, 2210), (646, 2015), (806, 1615), (1054, 1235), (1105, 1178)]