18955440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3761}}^1$

素因数の和:3787

約数の個数: 120

約数和(自身を含む): 72772128

約数和(自身を除く): 53816688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 3761, 5040, 7522, 11283, 15044, 18805, 22566, 26327, 30088, 33849, 37610, 45132, 52654, 56415, 60176, 67698, 75220, 78981, 90264, 105308, 112830, 131635, 135396, 150440, 157962, 169245, 180528, 210616, 225660, 236943, 263270, 270792, 300880, 315924, 338490, 394905, 421232, 451320, 473886, 526540, 541584, 631848, 676980, 789810, 902640, 947772, 1053080, 1184715, 1263696, 1353960, 1579620, 1895544, 2106160, 2369430, 2707920, 3159240, 3791088, 4738860, 6318480, 9477720, 18955440]

約数ペア:

[(1, 18955440), (2, 9477720), (3, 6318480), (4, 4738860), (5, 3791088), (6, 3159240), (7, 2707920), (8, 2369430), (9, 2106160), (10, 1895544), (12, 1579620), (14, 1353960), (15, 1263696), (16, 1184715), (18, 1053080), (20, 947772), (21, 902640), (24, 789810), (28, 676980), (30, 631848), (35, 541584), (36, 526540), (40, 473886), (42, 451320), (45, 421232), (48, 394905), (56, 338490), (60, 315924), (63, 300880), (70, 270792), (72, 263270), (80, 236943), (84, 225660), (90, 210616), (105, 180528), (112, 169245), (120, 157962), (126, 150440), (140, 135396), (144, 131635), (168, 112830), (180, 105308), (210, 90264), (240, 78981), (252, 75220), (280, 67698), (315, 60176), (336, 56415), (360, 52654), (420, 45132), (504, 37610), (560, 33849), (630, 30088), (720, 26327), (840, 22566), (1008, 18805), (1260, 15044), (1680, 11283), (2520, 7522), (3761, 5040)]