1378980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 4298112

約数和(自身を除く): 2919132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 163, 180, 188, 235, 282, 326, 423, 470, 489, 564, 652, 705, 815, 846, 940, 978, 1410, 1467, 1630, 1692, 1956, 2115, 2445, 2820, 2934, 3260, 4230, 4890, 5868, 7335, 7661, 8460, 9780, 14670, 15322, 22983, 29340, 30644, 38305, 45966, 68949, 76610, 91932, 114915, 137898, 153220, 229830, 275796, 344745, 459660, 689490, 1378980]

約数ペア:

[(1, 1378980), (2, 689490), (3, 459660), (4, 344745), (5, 275796), (6, 229830), (9, 153220), (10, 137898), (12, 114915), (15, 91932), (18, 76610), (20, 68949), (30, 45966), (36, 38305), (45, 30644), (47, 29340), (60, 22983), (90, 15322), (94, 14670), (141, 9780), (163, 8460), (180, 7661), (188, 7335), (235, 5868), (282, 4890), (326, 4230), (423, 3260), (470, 2934), (489, 2820), (564, 2445), (652, 2115), (705, 1956), (815, 1692), (846, 1630), (940, 1467), (978, 1410)]