78380120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 221235840

約数和(自身を除く): 142855720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 61, 65, 70, 91, 104, 122, 130, 140, 182, 244, 260, 280, 305, 353, 364, 427, 455, 488, 520, 610, 706, 728, 793, 854, 910, 1220, 1412, 1586, 1708, 1765, 1820, 2135, 2440, 2471, 2824, 3172, 3416, 3530, 3640, 3965, 4270, 4589, 4942, 5551, 6344, 7060, 7930, 8540, 9178, 9884, 11102, 12355, 14120, 15860, 17080, 18356, 19768, 21533, 22204, 22945, 24710, 27755, 31720, 32123, 36712, 43066, 44408, 45890, 49420, 55510, 64246, 86132, 91780, 98840, 107665, 111020, 128492, 150731, 160615, 172264, 183560, 215330, 222040, 256984, 279929, 301462, 321230, 430660, 559858, 602924, 642460, 753655, 861320, 1119716, 1205848, 1284920, 1399645, 1507310, 1959503, 2239432, 2799290, 3014620, 3919006, 5598580, 6029240, 7838012, 9797515, 11197160, 15676024, 19595030, 39190060, 78380120]

約数ペア:

[(1, 78380120), (2, 39190060), (4, 19595030), (5, 15676024), (7, 11197160), (8, 9797515), (10, 7838012), (13, 6029240), (14, 5598580), (20, 3919006), (26, 3014620), (28, 2799290), (35, 2239432), (40, 1959503), (52, 1507310), (56, 1399645), (61, 1284920), (65, 1205848), (70, 1119716), (91, 861320), (104, 753655), (122, 642460), (130, 602924), (140, 559858), (182, 430660), (244, 321230), (260, 301462), (280, 279929), (305, 256984), (353, 222040), (364, 215330), (427, 183560), (455, 172264), (488, 160615), (520, 150731), (610, 128492), (706, 111020), (728, 107665), (793, 98840), (854, 91780), (910, 86132), (1220, 64246), (1412, 55510), (1586, 49420), (1708, 45890), (1765, 44408), (1820, 43066), (2135, 36712), (2440, 32123), (2471, 31720), (2824, 27755), (3172, 24710), (3416, 22945), (3530, 22204), (3640, 21533), (3965, 19768), (4270, 18356), (4589, 17080), (4942, 15860), (5551, 14120), (6344, 12355), (7060, 11102), (7930, 9884), (8540, 9178)]