31907980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7219}}^1$

素因数の和:7258

約数の個数: 48

約数和(自身を含む): 76416480

約数和(自身を除く): 44508500

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 7219, 14438, 28876, 36095, 72190, 93847, 122723, 144380, 187694, 245446, 375388, 469235, 490892, 613615, 938470, 1227230, 1595399, 1876940, 2454460, 3190798, 6381596, 7976995, 15953990, 31907980]

約数ペア:

[(1, 31907980), (2, 15953990), (4, 7976995), (5, 6381596), (10, 3190798), (13, 2454460), (17, 1876940), (20, 1595399), (26, 1227230), (34, 938470), (52, 613615), (65, 490892), (68, 469235), (85, 375388), (130, 245446), (170, 187694), (221, 144380), (260, 122723), (340, 93847), (442, 72190), (884, 36095), (1105, 28876), (2210, 14438), (4420, 7219)]