20010420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5851}}^1$

素因数の和:5885

約数の個数: 72

約数和(自身を含む): 63903840

約数和(自身を除く): 43893420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5851, 11702, 17553, 23404, 29255, 35106, 52659, 58510, 70212, 87765, 105318, 111169, 117020, 175530, 210636, 222338, 263295, 333507, 351060, 444676, 526590, 555845, 667014, 1000521, 1053180, 1111690, 1334028, 1667535, 2001042, 2223380, 3335070, 4002084, 5002605, 6670140, 10005210, 20010420]

約数ペア:

[(1, 20010420), (2, 10005210), (3, 6670140), (4, 5002605), (5, 4002084), (6, 3335070), (9, 2223380), (10, 2001042), (12, 1667535), (15, 1334028), (18, 1111690), (19, 1053180), (20, 1000521), (30, 667014), (36, 555845), (38, 526590), (45, 444676), (57, 351060), (60, 333507), (76, 263295), (90, 222338), (95, 210636), (114, 175530), (171, 117020), (180, 111169), (190, 105318), (228, 87765), (285, 70212), (342, 58510), (380, 52659), (570, 35106), (684, 29255), (855, 23404), (1140, 17553), (1710, 11702), (3420, 5851)]