221721360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{487}}^1$

素因数の和:781

約数の個数: 160

約数和(自身を含む): 790044672

約数和(自身を除く): 568323312

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 271, 280, 336, 420, 487, 542, 560, 813, 840, 974, 1084, 1355, 1461, 1626, 1680, 1897, 1948, 2168, 2435, 2710, 2922, 3252, 3409, 3794, 3896, 4065, 4336, 4870, 5420, 5691, 5844, 6504, 6818, 7305, 7588, 7792, 8130, 9485, 9740, 10227, 10840, 11382, 11688, 13008, 13636, 14610, 15176, 16260, 17045, 18970, 19480, 20454, 21680, 22764, 23376, 27272, 28455, 29220, 30352, 32520, 34090, 37940, 38960, 40908, 45528, 51135, 54544, 56910, 58440, 65040, 68180, 75880, 81816, 91056, 102270, 113820, 116880, 131977, 136360, 151760, 163632, 204540, 227640, 263954, 272720, 395931, 409080, 455280, 527908, 659885, 791862, 818160, 923839, 1055816, 1319770, 1583724, 1847678, 1979655, 2111632, 2639540, 2771517, 3167448, 3695356, 3959310, 4619195, 5279080, 5543034, 6334896, 7390712, 7918620, 9238390, 10558160, 11086068, 13857585, 14781424, 15837240, 18476780, 22172136, 27715170, 31674480, 36953560, 44344272, 55430340, 73907120, 110860680, 221721360]

約数ペア:

[(1, 221721360), (2, 110860680), (3, 73907120), (4, 55430340), (5, 44344272), (6, 36953560), (7, 31674480), (8, 27715170), (10, 22172136), (12, 18476780), (14, 15837240), (15, 14781424), (16, 13857585), (20, 11086068), (21, 10558160), (24, 9238390), (28, 7918620), (30, 7390712), (35, 6334896), (40, 5543034), (42, 5279080), (48, 4619195), (56, 3959310), (60, 3695356), (70, 3167448), (80, 2771517), (84, 2639540), (105, 2111632), (112, 1979655), (120, 1847678), (140, 1583724), (168, 1319770), (210, 1055816), (240, 923839), (271, 818160), (280, 791862), (336, 659885), (420, 527908), (487, 455280), (542, 409080), (560, 395931), (813, 272720), (840, 263954), (974, 227640), (1084, 204540), (1355, 163632), (1461, 151760), (1626, 136360), (1680, 131977), (1897, 116880), (1948, 113820), (2168, 102270), (2435, 91056), (2710, 81816), (2922, 75880), (3252, 68180), (3409, 65040), (3794, 58440), (3896, 56910), (4065, 54544), (4336, 51135), (4870, 45528), (5420, 40908), (5691, 38960), (5844, 37940), (6504, 34090), (6818, 32520), (7305, 30352), (7588, 29220), (7792, 28455), (8130, 27272), (9485, 23376), (9740, 22764), (10227, 21680), (10840, 20454), (11382, 19480), (11688, 18970), (13008, 17045), (13636, 16260), (14610, 15176)]