219969960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1999}}^1$

素因数の和:2151

約数の個数: 128

約数和(自身を含む): 760320000

約数和(自身を除く): 540350040

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, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1965, 1999, 2620, 2751, 3144, 3668, 3930, 3998, 4585, 5240, 5502, 5997, 7336, 7860, 7996, 9170, 9995, 11004, 11994, 13755, 13993, 15720, 15992, 18340, 19990, 22008, 23988, 27510, 27986, 29985, 36680, 39980, 41979, 47976, 55020, 55972, 59970, 69965, 79960, 83958, 110040, 111944, 119940, 139930, 167916, 209895, 239880, 261869, 279860, 335832, 419790, 523738, 559720, 785607, 839580, 1047476, 1309345, 1571214, 1679160, 1833083, 2094952, 2618690, 3142428, 3666166, 3928035, 5237380, 5499249, 6284856, 7332332, 7856070, 9165415, 10474760, 10998498, 14664664, 15712140, 18330830, 21996996, 27496245, 31424280, 36661660, 43993992, 54992490, 73323320, 109984980, 219969960]

約数ペア:

[(1, 219969960), (2, 109984980), (3, 73323320), (4, 54992490), (5, 43993992), (6, 36661660), (7, 31424280), (8, 27496245), (10, 21996996), (12, 18330830), (14, 15712140), (15, 14664664), (20, 10998498), (21, 10474760), (24, 9165415), (28, 7856070), (30, 7332332), (35, 6284856), (40, 5499249), (42, 5237380), (56, 3928035), (60, 3666166), (70, 3142428), (84, 2618690), (105, 2094952), (120, 1833083), (131, 1679160), (140, 1571214), (168, 1309345), (210, 1047476), (262, 839580), (280, 785607), (393, 559720), (420, 523738), (524, 419790), (655, 335832), (786, 279860), (840, 261869), (917, 239880), (1048, 209895), (1310, 167916), (1572, 139930), (1834, 119940), (1965, 111944), (1999, 110040), (2620, 83958), (2751, 79960), (3144, 69965), (3668, 59970), (3930, 55972), (3998, 55020), (4585, 47976), (5240, 41979), (5502, 39980), (5997, 36680), (7336, 29985), (7860, 27986), (7996, 27510), (9170, 23988), (9995, 22008), (11004, 19990), (11994, 18340), (13755, 15992), (13993, 15720)]