402820740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{319699}}^1$

素因数の和:319721

約数の個数: 72

約数和(自身を含む): 1396449600

約数和(自身を除く): 993628860

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, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 319699, 639398, 959097, 1278796, 1598495, 1918194, 2237893, 2877291, 3196990, 3836388, 4475786, 4795485, 5754582, 6393980, 6713679, 8951572, 9590970, 11189465, 11509164, 13427358, 14386455, 19181940, 20141037, 22378930, 26854716, 28772910, 33568395, 40282074, 44757860, 57545820, 67136790, 80564148, 100705185, 134273580, 201410370, 402820740]

約数ペア:

[(1, 402820740), (2, 201410370), (3, 134273580), (4, 100705185), (5, 80564148), (6, 67136790), (7, 57545820), (9, 44757860), (10, 40282074), (12, 33568395), (14, 28772910), (15, 26854716), (18, 22378930), (20, 20141037), (21, 19181940), (28, 14386455), (30, 13427358), (35, 11509164), (36, 11189465), (42, 9590970), (45, 8951572), (60, 6713679), (63, 6393980), (70, 5754582), (84, 4795485), (90, 4475786), (105, 3836388), (126, 3196990), (140, 2877291), (180, 2237893), (210, 1918194), (252, 1598495), (315, 1278796), (420, 959097), (630, 639398), (1260, 319699)]