31213260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13339}}^1$

素因数の和:13367

約数の個数: 72

約数和(自身を含む): 101970960

約数和(自身を除く): 70757700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 13339, 26678, 40017, 53356, 66695, 80034, 120051, 133390, 160068, 173407, 200085, 240102, 266780, 346814, 400170, 480204, 520221, 600255, 693628, 800340, 867035, 1040442, 1200510, 1560663, 1734070, 2080884, 2401020, 2601105, 3121326, 3468140, 5202210, 6242652, 7803315, 10404420, 15606630, 31213260]

約数ペア:

[(1, 31213260), (2, 15606630), (3, 10404420), (4, 7803315), (5, 6242652), (6, 5202210), (9, 3468140), (10, 3121326), (12, 2601105), (13, 2401020), (15, 2080884), (18, 1734070), (20, 1560663), (26, 1200510), (30, 1040442), (36, 867035), (39, 800340), (45, 693628), (52, 600255), (60, 520221), (65, 480204), (78, 400170), (90, 346814), (117, 266780), (130, 240102), (156, 200085), (180, 173407), (195, 160068), (234, 133390), (260, 120051), (390, 80034), (468, 66695), (585, 53356), (780, 40017), (1170, 26678), (2340, 13339)]