205210980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87697}}^1$

素因数の和:87725

約数の個数: 72

約数和(自身を含む): 670363512

約数和(自身を除く): 465152532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 87697, 175394, 263091, 350788, 438485, 526182, 789273, 876970, 1052364, 1140061, 1315455, 1578546, 1753940, 2280122, 2630910, 3157092, 3420183, 3946365, 4560244, 5261820, 5700305, 6840366, 7892730, 10260549, 11400610, 13680732, 15785460, 17100915, 20521098, 22801220, 34201830, 41042196, 51302745, 68403660, 102605490, 205210980]

約数ペア:

[(1, 205210980), (2, 102605490), (3, 68403660), (4, 51302745), (5, 41042196), (6, 34201830), (9, 22801220), (10, 20521098), (12, 17100915), (13, 15785460), (15, 13680732), (18, 11400610), (20, 10260549), (26, 7892730), (30, 6840366), (36, 5700305), (39, 5261820), (45, 4560244), (52, 3946365), (60, 3420183), (65, 3157092), (78, 2630910), (90, 2280122), (117, 1753940), (130, 1578546), (156, 1315455), (180, 1140061), (195, 1052364), (234, 876970), (260, 789273), (390, 526182), (468, 438485), (585, 350788), (780, 263091), (1170, 175394), (2340, 87697)]