18402480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:499

約数の個数: 120

約数和(自身を含む): 62964720

約数和(自身を除く): 44562240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 419, 488, 549, 610, 720, 732, 838, 915, 976, 1098, 1220, 1257, 1464, 1676, 1830, 2095, 2196, 2440, 2514, 2745, 2928, 3352, 3660, 3771, 4190, 4392, 4880, 5028, 5490, 6285, 6704, 7320, 7542, 8380, 8784, 10056, 10980, 12570, 14640, 15084, 16760, 18855, 20112, 21960, 25140, 25559, 30168, 33520, 37710, 43920, 50280, 51118, 60336, 75420, 76677, 100560, 102236, 127795, 150840, 153354, 204472, 230031, 255590, 301680, 306708, 383385, 408944, 460062, 511180, 613416, 766770, 920124, 1022360, 1150155, 1226832, 1533540, 1840248, 2044720, 2300310, 3067080, 3680496, 4600620, 6134160, 9201240, 18402480]

約数ペア:

[(1, 18402480), (2, 9201240), (3, 6134160), (4, 4600620), (5, 3680496), (6, 3067080), (8, 2300310), (9, 2044720), (10, 1840248), (12, 1533540), (15, 1226832), (16, 1150155), (18, 1022360), (20, 920124), (24, 766770), (30, 613416), (36, 511180), (40, 460062), (45, 408944), (48, 383385), (60, 306708), (61, 301680), (72, 255590), (80, 230031), (90, 204472), (120, 153354), (122, 150840), (144, 127795), (180, 102236), (183, 100560), (240, 76677), (244, 75420), (305, 60336), (360, 51118), (366, 50280), (419, 43920), (488, 37710), (549, 33520), (610, 30168), (720, 25559), (732, 25140), (838, 21960), (915, 20112), (976, 18855), (1098, 16760), (1220, 15084), (1257, 14640), (1464, 12570), (1676, 10980), (1830, 10056), (2095, 8784), (2196, 8380), (2440, 7542), (2514, 7320), (2745, 6704), (2928, 6285), (3352, 5490), (3660, 5028), (3771, 4880), (4190, 4392)]