128749140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55021}}^1$

素因数の和:55049

約数の個数: 72

約数和(自身を含む): 420588168

約数和(自身を除く): 291839028

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, 55021, 110042, 165063, 220084, 275105, 330126, 495189, 550210, 660252, 715273, 825315, 990378, 1100420, 1430546, 1650630, 1980756, 2145819, 2475945, 2861092, 3301260, 3576365, 4291638, 4951890, 6437457, 7152730, 8583276, 9903780, 10729095, 12874914, 14305460, 21458190, 25749828, 32187285, 42916380, 64374570, 128749140]

約数ペア:

[(1, 128749140), (2, 64374570), (3, 42916380), (4, 32187285), (5, 25749828), (6, 21458190), (9, 14305460), (10, 12874914), (12, 10729095), (13, 9903780), (15, 8583276), (18, 7152730), (20, 6437457), (26, 4951890), (30, 4291638), (36, 3576365), (39, 3301260), (45, 2861092), (52, 2475945), (60, 2145819), (65, 1980756), (78, 1650630), (90, 1430546), (117, 1100420), (130, 990378), (156, 825315), (180, 715273), (195, 660252), (234, 550210), (260, 495189), (390, 330126), (468, 275105), (585, 220084), (780, 165063), (1170, 110042), (2340, 55021)]