128628900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1091}}^1$

素因数の和:1242

約数の個数: 108

約数和(自身を含む): 406630224

約数和(自身を除く): 278001324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 131, 150, 180, 225, 262, 300, 393, 450, 524, 655, 786, 900, 1091, 1179, 1310, 1572, 1965, 2182, 2358, 2620, 3273, 3275, 3930, 4364, 4716, 5455, 5895, 6546, 6550, 7860, 9819, 9825, 10910, 11790, 13092, 13100, 16365, 19638, 19650, 21820, 23580, 27275, 29475, 32730, 39276, 39300, 49095, 54550, 58950, 65460, 81825, 98190, 109100, 117900, 142921, 163650, 196380, 245475, 285842, 327300, 428763, 490950, 571684, 714605, 857526, 981900, 1286289, 1429210, 1715052, 2143815, 2572578, 2858420, 3573025, 4287630, 5145156, 6431445, 7146050, 8575260, 10719075, 12862890, 14292100, 21438150, 25725780, 32157225, 42876300, 64314450, 128628900]

約数ペア:

[(1, 128628900), (2, 64314450), (3, 42876300), (4, 32157225), (5, 25725780), (6, 21438150), (9, 14292100), (10, 12862890), (12, 10719075), (15, 8575260), (18, 7146050), (20, 6431445), (25, 5145156), (30, 4287630), (36, 3573025), (45, 2858420), (50, 2572578), (60, 2143815), (75, 1715052), (90, 1429210), (100, 1286289), (131, 981900), (150, 857526), (180, 714605), (225, 571684), (262, 490950), (300, 428763), (393, 327300), (450, 285842), (524, 245475), (655, 196380), (786, 163650), (900, 142921), (1091, 117900), (1179, 109100), (1310, 98190), (1572, 81825), (1965, 65460), (2182, 58950), (2358, 54550), (2620, 49095), (3273, 39300), (3275, 39276), (3930, 32730), (4364, 29475), (4716, 27275), (5455, 23580), (5895, 21820), (6546, 19650), (6550, 19638), (7860, 16365), (9819, 13100), (9825, 13092), (10910, 11790)]