28047240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{461}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 98918820

約数和(自身を除く): 70871580

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 169, 180, 195, 234, 260, 312, 338, 360, 390, 461, 468, 507, 520, 585, 676, 780, 845, 922, 936, 1014, 1170, 1352, 1383, 1521, 1560, 1690, 1844, 2028, 2305, 2340, 2535, 2766, 3042, 3380, 3688, 4056, 4149, 4610, 4680, 5070, 5532, 5993, 6084, 6760, 6915, 7605, 8298, 9220, 10140, 11064, 11986, 12168, 13830, 15210, 16596, 17979, 18440, 20280, 20745, 23972, 27660, 29965, 30420, 33192, 35958, 41490, 47944, 53937, 55320, 59930, 60840, 71916, 77909, 82980, 89895, 107874, 119860, 143832, 155818, 165960, 179790, 215748, 233727, 239720, 269685, 311636, 359580, 389545, 431496, 467454, 539370, 623272, 701181, 719160, 779090, 934908, 1078740, 1168635, 1402362, 1558180, 1869816, 2157480, 2337270, 2804724, 3116360, 3505905, 4674540, 5609448, 7011810, 9349080, 14023620, 28047240]

約数ペア:

[(1, 28047240), (2, 14023620), (3, 9349080), (4, 7011810), (5, 5609448), (6, 4674540), (8, 3505905), (9, 3116360), (10, 2804724), (12, 2337270), (13, 2157480), (15, 1869816), (18, 1558180), (20, 1402362), (24, 1168635), (26, 1078740), (30, 934908), (36, 779090), (39, 719160), (40, 701181), (45, 623272), (52, 539370), (60, 467454), (65, 431496), (72, 389545), (78, 359580), (90, 311636), (104, 269685), (117, 239720), (120, 233727), (130, 215748), (156, 179790), (169, 165960), (180, 155818), (195, 143832), (234, 119860), (260, 107874), (312, 89895), (338, 82980), (360, 77909), (390, 71916), (461, 60840), (468, 59930), (507, 55320), (520, 53937), (585, 47944), (676, 41490), (780, 35958), (845, 33192), (922, 30420), (936, 29965), (1014, 27660), (1170, 23972), (1352, 20745), (1383, 20280), (1521, 18440), (1560, 17979), (1690, 16596), (1844, 15210), (2028, 13830), (2305, 12168), (2340, 11986), (2535, 11064), (2766, 10140), (3042, 9220), (3380, 8298), (3688, 7605), (4056, 6915), (4149, 6760), (4610, 6084), (4680, 5993), (5070, 5532)]