21990147240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1259}}^1\times {\mathrm{2467}}^1$

素因数の和:3799

約数の個数: 128

約数和(自身を含む): 67169088000

約数和(自身を除く): 45178940760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 472, 590, 708, 885, 1180, 1259, 1416, 1770, 2360, 2467, 2518, 3540, 3777, 4934, 5036, 6295, 7080, 7401, 7554, 9868, 10072, 12335, 12590, 14802, 15108, 18885, 19736, 24670, 25180, 29604, 30216, 37005, 37770, 49340, 50360, 59208, 74010, 74281, 75540, 98680, 145553, 148020, 148562, 151080, 222843, 291106, 296040, 297124, 371405, 436659, 445686, 582212, 594248, 727765, 742810, 873318, 891372, 1114215, 1164424, 1455530, 1485620, 1746636, 1782744, 2183295, 2228430, 2911060, 2971240, 3105953, 3493272, 4366590, 4456860, 5822120, 6211906, 8733180, 8913720, 9317859, 12423812, 15529765, 17466360, 18635718, 24847624, 31059530, 37271436, 46589295, 62119060, 74542872, 93178590, 124238120, 183251227, 186357180, 366502454, 372714360, 549753681, 733004908, 916256135, 1099507362, 1466009816, 1832512270, 2199014724, 2748768405, 3665024540, 4398029448, 5497536810, 7330049080, 10995073620, 21990147240]

約数ペア:

[(1, 21990147240), (2, 10995073620), (3, 7330049080), (4, 5497536810), (5, 4398029448), (6, 3665024540), (8, 2748768405), (10, 2199014724), (12, 1832512270), (15, 1466009816), (20, 1099507362), (24, 916256135), (30, 733004908), (40, 549753681), (59, 372714360), (60, 366502454), (118, 186357180), (120, 183251227), (177, 124238120), (236, 93178590), (295, 74542872), (354, 62119060), (472, 46589295), (590, 37271436), (708, 31059530), (885, 24847624), (1180, 18635718), (1259, 17466360), (1416, 15529765), (1770, 12423812), (2360, 9317859), (2467, 8913720), (2518, 8733180), (3540, 6211906), (3777, 5822120), (4934, 4456860), (5036, 4366590), (6295, 3493272), (7080, 3105953), (7401, 2971240), (7554, 2911060), (9868, 2228430), (10072, 2183295), (12335, 1782744), (12590, 1746636), (14802, 1485620), (15108, 1455530), (18885, 1164424), (19736, 1114215), (24670, 891372), (25180, 873318), (29604, 742810), (30216, 727765), (37005, 594248), (37770, 582212), (49340, 445686), (50360, 436659), (59208, 371405), (74010, 297124), (74281, 296040), (75540, 291106), (98680, 222843), (145553, 151080), (148020, 148562)]