781078480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3461}}^1$

素因数の和:3525

約数の個数: 160

約数和(自身を含む): 2307852288

約数和(自身を除く): 1526773808

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 182, 208, 217, 248, 260, 280, 310, 364, 403, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 1040, 1085, 1240, 1456, 1612, 1736, 1820, 2015, 2170, 2480, 2821, 3224, 3461, 3472, 3640, 4030, 4340, 5642, 6448, 6922, 7280, 8060, 8680, 11284, 13844, 14105, 16120, 17305, 17360, 22568, 24227, 27688, 28210, 32240, 34610, 44993, 45136, 48454, 55376, 56420, 69220, 89986, 96908, 107291, 112840, 121135, 138440, 179972, 193816, 214582, 224965, 225680, 242270, 276880, 314951, 359944, 387632, 429164, 449930, 484540, 536455, 629902, 719888, 751037, 858328, 899860, 969080, 1072910, 1259804, 1394783, 1502074, 1574755, 1716656, 1799720, 1938160, 2145820, 2519608, 2789566, 3004148, 3149510, 3599440, 3755185, 4291640, 5039216, 5579132, 6008296, 6299020, 6973915, 7510370, 8583280, 9763481, 11158264, 12016592, 12598040, 13947830, 15020740, 19526962, 22316528, 25196080, 27895660, 30041480, 39053924, 48817405, 55791320, 60082960, 78107848, 97634810, 111582640, 156215696, 195269620, 390539240, 781078480]

約数ペア:

[(1, 781078480), (2, 390539240), (4, 195269620), (5, 156215696), (7, 111582640), (8, 97634810), (10, 78107848), (13, 60082960), (14, 55791320), (16, 48817405), (20, 39053924), (26, 30041480), (28, 27895660), (31, 25196080), (35, 22316528), (40, 19526962), (52, 15020740), (56, 13947830), (62, 12598040), (65, 12016592), (70, 11158264), (80, 9763481), (91, 8583280), (104, 7510370), (112, 6973915), (124, 6299020), (130, 6008296), (140, 5579132), (155, 5039216), (182, 4291640), (208, 3755185), (217, 3599440), (248, 3149510), (260, 3004148), (280, 2789566), (310, 2519608), (364, 2145820), (403, 1938160), (434, 1799720), (455, 1716656), (496, 1574755), (520, 1502074), (560, 1394783), (620, 1259804), (728, 1072910), (806, 969080), (868, 899860), (910, 858328), (1040, 751037), (1085, 719888), (1240, 629902), (1456, 536455), (1612, 484540), (1736, 449930), (1820, 429164), (2015, 387632), (2170, 359944), (2480, 314951), (2821, 276880), (3224, 242270), (3461, 225680), (3472, 224965), (3640, 214582), (4030, 193816), (4340, 179972), (5642, 138440), (6448, 121135), (6922, 112840), (7280, 107291), (8060, 96908), (8680, 89986), (11284, 69220), (13844, 56420), (14105, 55376), (16120, 48454), (17305, 45136), (17360, 44993), (22568, 34610), (24227, 32240), (27688, 28210)]