19678600

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1613}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 46531620

約数和(自身を除く): 26853020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 1613, 2440, 3050, 3226, 6100, 6452, 8065, 12200, 12904, 16130, 32260, 40325, 64520, 80650, 98393, 161300, 196786, 322600, 393572, 491965, 787144, 983930, 1967860, 2459825, 3935720, 4919650, 9839300, 19678600]

約数ペア:

[(1, 19678600), (2, 9839300), (4, 4919650), (5, 3935720), (8, 2459825), (10, 1967860), (20, 983930), (25, 787144), (40, 491965), (50, 393572), (61, 322600), (100, 196786), (122, 161300), (200, 98393), (244, 80650), (305, 64520), (488, 40325), (610, 32260), (1220, 16130), (1525, 12904), (1613, 12200), (2440, 8065), (3050, 6452), (3226, 6100)]