781625940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^2$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 2324184576

約数和(自身を除く): 1542558636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 83, 93, 122, 124, 155, 166, 183, 186, 244, 249, 305, 310, 332, 366, 372, 415, 465, 498, 610, 620, 732, 830, 915, 930, 996, 1220, 1245, 1660, 1830, 1860, 1891, 2490, 2573, 3660, 3782, 4980, 5063, 5146, 5673, 6889, 7564, 7719, 9455, 10126, 10292, 11346, 12865, 13778, 15189, 15438, 18910, 20252, 20667, 22692, 25315, 25730, 27556, 28365, 30378, 30876, 34445, 37820, 38595, 41334, 50630, 51460, 56730, 60756, 68890, 75945, 77190, 82668, 101260, 103335, 113460, 137780, 151890, 154380, 156953, 206670, 213559, 303780, 313906, 413340, 420229, 427118, 470859, 627812, 640677, 784765, 840458, 854236, 941718, 1067795, 1260687, 1281354, 1569530, 1680916, 1883436, 2101145, 2135590, 2354295, 2521374, 2562708, 3139060, 3203385, 4202290, 4271180, 4708590, 5042748, 6303435, 6406770, 8404580, 9417180, 12606870, 12813540, 13027099, 25213740, 26054198, 39081297, 52108396, 65135495, 78162594, 130270990, 156325188, 195406485, 260541980, 390812970, 781625940]

約数ペア:

[(1, 781625940), (2, 390812970), (3, 260541980), (4, 195406485), (5, 156325188), (6, 130270990), (10, 78162594), (12, 65135495), (15, 52108396), (20, 39081297), (30, 26054198), (31, 25213740), (60, 13027099), (61, 12813540), (62, 12606870), (83, 9417180), (93, 8404580), (122, 6406770), (124, 6303435), (155, 5042748), (166, 4708590), (183, 4271180), (186, 4202290), (244, 3203385), (249, 3139060), (305, 2562708), (310, 2521374), (332, 2354295), (366, 2135590), (372, 2101145), (415, 1883436), (465, 1680916), (498, 1569530), (610, 1281354), (620, 1260687), (732, 1067795), (830, 941718), (915, 854236), (930, 840458), (996, 784765), (1220, 640677), (1245, 627812), (1660, 470859), (1830, 427118), (1860, 420229), (1891, 413340), (2490, 313906), (2573, 303780), (3660, 213559), (3782, 206670), (4980, 156953), (5063, 154380), (5146, 151890), (5673, 137780), (6889, 113460), (7564, 103335), (7719, 101260), (9455, 82668), (10126, 77190), (10292, 75945), (11346, 68890), (12865, 60756), (13778, 56730), (15189, 51460), (15438, 50630), (18910, 41334), (20252, 38595), (20667, 37820), (22692, 34445), (25315, 30876), (25730, 30378), (27556, 28365)]