400440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 1244160

約数和(自身を除く): 843720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 71, 94, 120, 141, 142, 188, 213, 235, 282, 284, 355, 376, 426, 470, 564, 568, 705, 710, 852, 940, 1065, 1128, 1410, 1420, 1704, 1880, 2130, 2820, 2840, 3337, 4260, 5640, 6674, 8520, 10011, 13348, 16685, 20022, 26696, 33370, 40044, 50055, 66740, 80088, 100110, 133480, 200220, 400440]

約数ペア:

[(1, 400440), (2, 200220), (3, 133480), (4, 100110), (5, 80088), (6, 66740), (8, 50055), (10, 40044), (12, 33370), (15, 26696), (20, 20022), (24, 16685), (30, 13348), (40, 10011), (47, 8520), (60, 6674), (71, 5640), (94, 4260), (120, 3337), (141, 2840), (142, 2820), (188, 2130), (213, 1880), (235, 1704), (282, 1420), (284, 1410), (355, 1128), (376, 1065), (426, 940), (470, 852), (564, 710), (568, 705)]