128451120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:667

約数の個数: 160

約数和(自身を含む): 458923008

約数和(自身を除く): 330471888

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 157, 168, 210, 240, 280, 314, 336, 420, 471, 487, 560, 628, 785, 840, 942, 974, 1099, 1256, 1461, 1570, 1680, 1884, 1948, 2198, 2355, 2435, 2512, 2922, 3140, 3297, 3409, 3768, 3896, 4396, 4710, 4870, 5495, 5844, 6280, 6594, 6818, 7305, 7536, 7792, 8792, 9420, 9740, 10227, 10990, 11688, 12560, 13188, 13636, 14610, 16485, 17045, 17584, 18840, 19480, 20454, 21980, 23376, 26376, 27272, 29220, 32970, 34090, 37680, 38960, 40908, 43960, 51135, 52752, 54544, 58440, 65940, 68180, 76459, 81816, 87920, 102270, 116880, 131880, 136360, 152918, 163632, 204540, 229377, 263760, 272720, 305836, 382295, 409080, 458754, 535213, 611672, 764590, 818160, 917508, 1070426, 1146885, 1223344, 1529180, 1605639, 1835016, 2140852, 2293770, 2676065, 3058360, 3211278, 3670032, 4281704, 4587540, 5352130, 6116720, 6422556, 8028195, 8563408, 9175080, 10704260, 12845112, 16056390, 18350160, 21408520, 25690224, 32112780, 42817040, 64225560, 128451120]

約数ペア:

[(1, 128451120), (2, 64225560), (3, 42817040), (4, 32112780), (5, 25690224), (6, 21408520), (7, 18350160), (8, 16056390), (10, 12845112), (12, 10704260), (14, 9175080), (15, 8563408), (16, 8028195), (20, 6422556), (21, 6116720), (24, 5352130), (28, 4587540), (30, 4281704), (35, 3670032), (40, 3211278), (42, 3058360), (48, 2676065), (56, 2293770), (60, 2140852), (70, 1835016), (80, 1605639), (84, 1529180), (105, 1223344), (112, 1146885), (120, 1070426), (140, 917508), (157, 818160), (168, 764590), (210, 611672), (240, 535213), (280, 458754), (314, 409080), (336, 382295), (420, 305836), (471, 272720), (487, 263760), (560, 229377), (628, 204540), (785, 163632), (840, 152918), (942, 136360), (974, 131880), (1099, 116880), (1256, 102270), (1461, 87920), (1570, 81816), (1680, 76459), (1884, 68180), (1948, 65940), (2198, 58440), (2355, 54544), (2435, 52752), (2512, 51135), (2922, 43960), (3140, 40908), (3297, 38960), (3409, 37680), (3768, 34090), (3896, 32970), (4396, 29220), (4710, 27272), (4870, 26376), (5495, 23376), (5844, 21980), (6280, 20454), (6594, 19480), (6818, 18840), (7305, 17584), (7536, 17045), (7792, 16485), (8792, 14610), (9420, 13636), (9740, 13188), (10227, 12560), (10990, 11688)]