1490840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 3749760

約数和(自身を除く): 2258920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 61, 65, 94, 104, 122, 130, 188, 235, 244, 260, 305, 376, 470, 488, 520, 610, 611, 793, 940, 1220, 1222, 1586, 1880, 2440, 2444, 2867, 3055, 3172, 3965, 4888, 5734, 6110, 6344, 7930, 11468, 12220, 14335, 15860, 22936, 24440, 28670, 31720, 37271, 57340, 74542, 114680, 149084, 186355, 298168, 372710, 745420, 1490840]

約数ペア:

[(1, 1490840), (2, 745420), (4, 372710), (5, 298168), (8, 186355), (10, 149084), (13, 114680), (20, 74542), (26, 57340), (40, 37271), (47, 31720), (52, 28670), (61, 24440), (65, 22936), (94, 15860), (104, 14335), (122, 12220), (130, 11468), (188, 7930), (235, 6344), (244, 6110), (260, 5734), (305, 4888), (376, 3965), (470, 3172), (488, 3055), (520, 2867), (610, 2444), (611, 2440), (793, 1880), (940, 1586), (1220, 1222)]