396145280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:578

約数の個数: 128

約数和(自身を含む): 1003484160

約数和(自身を除く): 607338880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 310, 320, 328, 410, 487, 496, 620, 640, 656, 820, 974, 992, 1240, 1271, 1312, 1640, 1948, 1984, 2435, 2480, 2542, 2624, 3280, 3896, 3968, 4870, 4960, 5084, 5248, 6355, 6560, 7792, 9740, 9920, 10168, 12710, 13120, 15097, 15584, 19480, 19840, 19967, 20336, 25420, 26240, 30194, 31168, 38960, 39934, 40672, 50840, 60388, 62336, 75485, 77920, 79868, 81344, 99835, 101680, 120776, 150970, 155840, 159736, 162688, 199670, 203360, 241552, 301940, 311680, 319472, 399340, 406720, 483104, 603880, 618977, 638944, 798680, 813440, 966208, 1207760, 1237954, 1277888, 1597360, 1932416, 2415520, 2475908, 2555776, 3094885, 3194720, 4831040, 4951816, 6189770, 6389440, 9662080, 9903632, 12379540, 12778880, 19807264, 24759080, 39614528, 49518160, 79229056, 99036320, 198072640, 396145280]

約数ペア:

[(1, 396145280), (2, 198072640), (4, 99036320), (5, 79229056), (8, 49518160), (10, 39614528), (16, 24759080), (20, 19807264), (31, 12778880), (32, 12379540), (40, 9903632), (41, 9662080), (62, 6389440), (64, 6189770), (80, 4951816), (82, 4831040), (124, 3194720), (128, 3094885), (155, 2555776), (160, 2475908), (164, 2415520), (205, 1932416), (248, 1597360), (310, 1277888), (320, 1237954), (328, 1207760), (410, 966208), (487, 813440), (496, 798680), (620, 638944), (640, 618977), (656, 603880), (820, 483104), (974, 406720), (992, 399340), (1240, 319472), (1271, 311680), (1312, 301940), (1640, 241552), (1948, 203360), (1984, 199670), (2435, 162688), (2480, 159736), (2542, 155840), (2624, 150970), (3280, 120776), (3896, 101680), (3968, 99835), (4870, 81344), (4960, 79868), (5084, 77920), (5248, 75485), (6355, 62336), (6560, 60388), (7792, 50840), (9740, 40672), (9920, 39934), (10168, 38960), (12710, 31168), (13120, 30194), (15097, 26240), (15584, 25420), (19480, 20336), (19840, 19967)]