19872450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 59579520

約数和(自身を除く): 39707070

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 43, 45, 50, 65, 75, 78, 79, 86, 90, 117, 129, 130, 150, 158, 195, 215, 225, 234, 237, 258, 325, 387, 390, 395, 430, 450, 474, 559, 585, 645, 650, 711, 774, 790, 975, 1027, 1075, 1118, 1170, 1185, 1290, 1422, 1677, 1935, 1950, 1975, 2054, 2150, 2370, 2795, 2925, 3081, 3225, 3354, 3397, 3555, 3870, 3950, 5031, 5135, 5590, 5850, 5925, 6162, 6450, 6794, 7110, 8385, 9243, 9675, 10062, 10191, 10270, 11850, 13975, 15405, 16770, 16985, 17775, 18486, 19350, 20382, 25155, 25675, 27950, 30573, 30810, 33970, 35550, 41925, 44161, 46215, 50310, 50955, 51350, 61146, 77025, 83850, 84925, 88322, 92430, 101910, 125775, 132483, 152865, 154050, 169850, 220805, 231075, 251550, 254775, 264966, 305730, 397449, 441610, 462150, 509550, 662415, 764325, 794898, 1104025, 1324830, 1528650, 1987245, 2208050, 3312075, 3974490, 6624150, 9936225, 19872450]

約数ペア:

[(1, 19872450), (2, 9936225), (3, 6624150), (5, 3974490), (6, 3312075), (9, 2208050), (10, 1987245), (13, 1528650), (15, 1324830), (18, 1104025), (25, 794898), (26, 764325), (30, 662415), (39, 509550), (43, 462150), (45, 441610), (50, 397449), (65, 305730), (75, 264966), (78, 254775), (79, 251550), (86, 231075), (90, 220805), (117, 169850), (129, 154050), (130, 152865), (150, 132483), (158, 125775), (195, 101910), (215, 92430), (225, 88322), (234, 84925), (237, 83850), (258, 77025), (325, 61146), (387, 51350), (390, 50955), (395, 50310), (430, 46215), (450, 44161), (474, 41925), (559, 35550), (585, 33970), (645, 30810), (650, 30573), (711, 27950), (774, 25675), (790, 25155), (975, 20382), (1027, 19350), (1075, 18486), (1118, 17775), (1170, 16985), (1185, 16770), (1290, 15405), (1422, 13975), (1677, 11850), (1935, 10270), (1950, 10191), (1975, 10062), (2054, 9675), (2150, 9243), (2370, 8385), (2795, 7110), (2925, 6794), (3081, 6450), (3225, 6162), (3354, 5925), (3397, 5850), (3555, 5590), (3870, 5135), (3950, 5031)]