78680240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:798

約数の個数: 80

約数和(自身を含む): 194291136

約数和(自身を除く): 115610896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 184, 230, 244, 305, 368, 460, 488, 610, 701, 920, 976, 1220, 1402, 1403, 1840, 2440, 2804, 2806, 3505, 4880, 5608, 5612, 7010, 7015, 11216, 11224, 14020, 14030, 16123, 22448, 28040, 28060, 32246, 42761, 56080, 56120, 64492, 80615, 85522, 112240, 128984, 161230, 171044, 213805, 257968, 322460, 342088, 427610, 644920, 684176, 855220, 983503, 1289840, 1710440, 1967006, 3420880, 3934012, 4917515, 7868024, 9835030, 15736048, 19670060, 39340120, 78680240]

約数ペア:

[(1, 78680240), (2, 39340120), (4, 19670060), (5, 15736048), (8, 9835030), (10, 7868024), (16, 4917515), (20, 3934012), (23, 3420880), (40, 1967006), (46, 1710440), (61, 1289840), (80, 983503), (92, 855220), (115, 684176), (122, 644920), (184, 427610), (230, 342088), (244, 322460), (305, 257968), (368, 213805), (460, 171044), (488, 161230), (610, 128984), (701, 112240), (920, 85522), (976, 80615), (1220, 64492), (1402, 56120), (1403, 56080), (1840, 42761), (2440, 32246), (2804, 28060), (2806, 28040), (3505, 22448), (4880, 16123), (5608, 14030), (5612, 14020), (7010, 11224), (7015, 11216)]