18481048040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163781}}^1$

素因数の和:163843

約数の個数: 128

約数和(自身を含む): 52829521920

約数和(自身を除く): 34348473880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 620, 728, 806, 868, 910, 1085, 1240, 1612, 1736, 1820, 2015, 2170, 2821, 3224, 3640, 4030, 4340, 5642, 8060, 8680, 11284, 14105, 16120, 22568, 28210, 56420, 112840, 163781, 327562, 655124, 818905, 1146467, 1310248, 1637810, 2129153, 2292934, 3275620, 4258306, 4585868, 5077211, 5732335, 6551240, 8516612, 9171736, 10154422, 10645765, 11464670, 14904071, 17033224, 20308844, 21291530, 22929340, 25386055, 29808142, 35540477, 40617688, 42583060, 45858680, 50772110, 59616284, 66003743, 71080954, 74520355, 85166120, 101544220, 119232568, 132007486, 142161908, 149040710, 177702385, 203088440, 264014972, 284323816, 298081420, 330018715, 355404770, 462026201, 528029944, 596162840, 660037430, 710809540, 924052402, 1320074860, 1421619080, 1848104804, 2310131005, 2640149720, 3696209608, 4620262010, 9240524020, 18481048040]

約数ペア:

[(1, 18481048040), (2, 9240524020), (4, 4620262010), (5, 3696209608), (7, 2640149720), (8, 2310131005), (10, 1848104804), (13, 1421619080), (14, 1320074860), (20, 924052402), (26, 710809540), (28, 660037430), (31, 596162840), (35, 528029944), (40, 462026201), (52, 355404770), (56, 330018715), (62, 298081420), (65, 284323816), (70, 264014972), (91, 203088440), (104, 177702385), (124, 149040710), (130, 142161908), (140, 132007486), (155, 119232568), (182, 101544220), (217, 85166120), (248, 74520355), (260, 71080954), (280, 66003743), (310, 59616284), (364, 50772110), (403, 45858680), (434, 42583060), (455, 40617688), (520, 35540477), (620, 29808142), (728, 25386055), (806, 22929340), (868, 21291530), (910, 20308844), (1085, 17033224), (1240, 14904071), (1612, 11464670), (1736, 10645765), (1820, 10154422), (2015, 9171736), (2170, 8516612), (2821, 6551240), (3224, 5732335), (3640, 5077211), (4030, 4585868), (4340, 4258306), (5642, 3275620), (8060, 2292934), (8680, 2129153), (11284, 1637810), (14105, 1310248), (16120, 1146467), (22568, 818905), (28210, 655124), (56420, 327562), (112840, 163781)]