216831720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{881}}^1$

素因数の和:1195

約数の個数: 128

約数和(自身を含む): 746807040

約数和(自身を除く): 529975320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 293, 420, 586, 840, 879, 881, 1172, 1465, 1758, 1762, 2051, 2344, 2643, 2930, 3516, 3524, 4102, 4395, 4405, 5286, 5860, 6153, 6167, 7032, 7048, 8204, 8790, 8810, 10255, 10572, 11720, 12306, 12334, 13215, 16408, 17580, 17620, 18501, 20510, 21144, 24612, 24668, 26430, 30765, 30835, 35160, 35240, 37002, 41020, 49224, 49336, 52860, 61530, 61670, 74004, 82040, 92505, 105720, 123060, 123340, 148008, 185010, 246120, 246680, 258133, 370020, 516266, 740040, 774399, 1032532, 1290665, 1548798, 1806931, 2065064, 2581330, 3097596, 3613862, 3871995, 5162660, 5420793, 6195192, 7227724, 7743990, 9034655, 10325320, 10841586, 14455448, 15487980, 18069310, 21683172, 27103965, 30975960, 36138620, 43366344, 54207930, 72277240, 108415860, 216831720]

約数ペア:

[(1, 216831720), (2, 108415860), (3, 72277240), (4, 54207930), (5, 43366344), (6, 36138620), (7, 30975960), (8, 27103965), (10, 21683172), (12, 18069310), (14, 15487980), (15, 14455448), (20, 10841586), (21, 10325320), (24, 9034655), (28, 7743990), (30, 7227724), (35, 6195192), (40, 5420793), (42, 5162660), (56, 3871995), (60, 3613862), (70, 3097596), (84, 2581330), (105, 2065064), (120, 1806931), (140, 1548798), (168, 1290665), (210, 1032532), (280, 774399), (293, 740040), (420, 516266), (586, 370020), (840, 258133), (879, 246680), (881, 246120), (1172, 185010), (1465, 148008), (1758, 123340), (1762, 123060), (2051, 105720), (2344, 92505), (2643, 82040), (2930, 74004), (3516, 61670), (3524, 61530), (4102, 52860), (4395, 49336), (4405, 49224), (5286, 41020), (5860, 37002), (6153, 35240), (6167, 35160), (7032, 30835), (7048, 30765), (8204, 26430), (8790, 24668), (8810, 24612), (10255, 21144), (10572, 20510), (11720, 18501), (12306, 17620), (12334, 17580), (13215, 16408)]