7211820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 25740288

約数和(自身を除く): 18528468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 223, 231, 245, 294, 308, 330, 385, 420, 446, 462, 490, 539, 588, 660, 669, 735, 770, 892, 924, 980, 1078, 1115, 1155, 1338, 1470, 1540, 1561, 1617, 2156, 2230, 2310, 2453, 2676, 2695, 2940, 3122, 3234, 3345, 4460, 4620, 4683, 4906, 5390, 6244, 6468, 6690, 7359, 7805, 8085, 9366, 9812, 10780, 10927, 12265, 13380, 14718, 15610, 16170, 17171, 18732, 21854, 23415, 24530, 29436, 31220, 32340, 32781, 34342, 36795, 43708, 46830, 49060, 51513, 54635, 65562, 68684, 73590, 85855, 93660, 103026, 109270, 120197, 131124, 147180, 163905, 171710, 206052, 218540, 240394, 257565, 327810, 343420, 360591, 480788, 515130, 600985, 655620, 721182, 1030260, 1201970, 1442364, 1802955, 2403940, 3605910, 7211820]

約数ペア:

[(1, 7211820), (2, 3605910), (3, 2403940), (4, 1802955), (5, 1442364), (6, 1201970), (7, 1030260), (10, 721182), (11, 655620), (12, 600985), (14, 515130), (15, 480788), (20, 360591), (21, 343420), (22, 327810), (28, 257565), (30, 240394), (33, 218540), (35, 206052), (42, 171710), (44, 163905), (49, 147180), (55, 131124), (60, 120197), (66, 109270), (70, 103026), (77, 93660), (84, 85855), (98, 73590), (105, 68684), (110, 65562), (132, 54635), (140, 51513), (147, 49060), (154, 46830), (165, 43708), (196, 36795), (210, 34342), (220, 32781), (223, 32340), (231, 31220), (245, 29436), (294, 24530), (308, 23415), (330, 21854), (385, 18732), (420, 17171), (446, 16170), (462, 15610), (490, 14718), (539, 13380), (588, 12265), (660, 10927), (669, 10780), (735, 9812), (770, 9366), (892, 8085), (924, 7805), (980, 7359), (1078, 6690), (1115, 6468), (1155, 6244), (1338, 5390), (1470, 4906), (1540, 4683), (1561, 4620), (1617, 4460), (2156, 3345), (2230, 3234), (2310, 3122), (2453, 2940), (2676, 2695)]