22991220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 144

約数和(自身を含む): 81139968

約数和(自身を除く): 58148748

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 257, 284, 315, 355, 420, 426, 497, 514, 630, 639, 710, 771, 852, 994, 1028, 1065, 1260, 1278, 1285, 1420, 1491, 1542, 1799, 1988, 2130, 2313, 2485, 2556, 2570, 2982, 3084, 3195, 3598, 3855, 4260, 4473, 4626, 4970, 5140, 5397, 5964, 6390, 7196, 7455, 7710, 8946, 8995, 9252, 9940, 10794, 11565, 12780, 14910, 15420, 16191, 17892, 17990, 18247, 21588, 22365, 23130, 26985, 29820, 32382, 35980, 36494, 44730, 46260, 53970, 54741, 64764, 72988, 80955, 89460, 91235, 107940, 109482, 127729, 161910, 164223, 182470, 218964, 255458, 273705, 323820, 328446, 364940, 383187, 510916, 547410, 638645, 656892, 766374, 821115, 1094820, 1149561, 1277290, 1532748, 1642230, 1915935, 2299122, 2554580, 3284460, 3831870, 4598244, 5747805, 7663740, 11495610, 22991220]

約数ペア:

[(1, 22991220), (2, 11495610), (3, 7663740), (4, 5747805), (5, 4598244), (6, 3831870), (7, 3284460), (9, 2554580), (10, 2299122), (12, 1915935), (14, 1642230), (15, 1532748), (18, 1277290), (20, 1149561), (21, 1094820), (28, 821115), (30, 766374), (35, 656892), (36, 638645), (42, 547410), (45, 510916), (60, 383187), (63, 364940), (70, 328446), (71, 323820), (84, 273705), (90, 255458), (105, 218964), (126, 182470), (140, 164223), (142, 161910), (180, 127729), (210, 109482), (213, 107940), (252, 91235), (257, 89460), (284, 80955), (315, 72988), (355, 64764), (420, 54741), (426, 53970), (497, 46260), (514, 44730), (630, 36494), (639, 35980), (710, 32382), (771, 29820), (852, 26985), (994, 23130), (1028, 22365), (1065, 21588), (1260, 18247), (1278, 17990), (1285, 17892), (1420, 16191), (1491, 15420), (1542, 14910), (1799, 12780), (1988, 11565), (2130, 10794), (2313, 9940), (2485, 9252), (2556, 8995), (2570, 8946), (2982, 7710), (3084, 7455), (3195, 7196), (3598, 6390), (3855, 5964), (4260, 5397), (4473, 5140), (4626, 4970)]