256914840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3361}}^1$

素因数の和:3402

約数の個数: 192

約数和(自身を含む): 965835360

約数和(自身を除く): 708920520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 49, 52, 56, 60, 65, 70, 78, 84, 91, 98, 104, 105, 120, 130, 140, 147, 156, 168, 182, 195, 196, 210, 245, 260, 273, 280, 294, 312, 364, 390, 392, 420, 455, 490, 520, 546, 588, 637, 728, 735, 780, 840, 910, 980, 1092, 1176, 1274, 1365, 1470, 1560, 1820, 1911, 1960, 2184, 2548, 2730, 2940, 3185, 3361, 3640, 3822, 5096, 5460, 5880, 6370, 6722, 7644, 9555, 10083, 10920, 12740, 13444, 15288, 16805, 19110, 20166, 23527, 25480, 26888, 33610, 38220, 40332, 43693, 47054, 50415, 67220, 70581, 76440, 80664, 87386, 94108, 100830, 117635, 131079, 134440, 141162, 164689, 174772, 188216, 201660, 218465, 235270, 262158, 282324, 305851, 329378, 349544, 352905, 403320, 436930, 470540, 494067, 524316, 564648, 611702, 655395, 658756, 705810, 823445, 873860, 917553, 941080, 988134, 1048632, 1223404, 1310790, 1317512, 1411620, 1529255, 1646890, 1747720, 1835106, 1976268, 2140957, 2446808, 2470335, 2621580, 2823240, 3058510, 3293780, 3670212, 3952536, 4281914, 4587765, 4940670, 5243160, 6117020, 6422871, 6587560, 7340424, 8563828, 9175530, 9881340, 10704785, 12234040, 12845742, 17127656, 18351060, 19762680, 21409570, 25691484, 32114355, 36702120, 42819140, 51382968, 64228710, 85638280, 128457420, 256914840]

約数ペア:

[(1, 256914840), (2, 128457420), (3, 85638280), (4, 64228710), (5, 51382968), (6, 42819140), (7, 36702120), (8, 32114355), (10, 25691484), (12, 21409570), (13, 19762680), (14, 18351060), (15, 17127656), (20, 12845742), (21, 12234040), (24, 10704785), (26, 9881340), (28, 9175530), (30, 8563828), (35, 7340424), (39, 6587560), (40, 6422871), (42, 6117020), (49, 5243160), (52, 4940670), (56, 4587765), (60, 4281914), (65, 3952536), (70, 3670212), (78, 3293780), (84, 3058510), (91, 2823240), (98, 2621580), (104, 2470335), (105, 2446808), (120, 2140957), (130, 1976268), (140, 1835106), (147, 1747720), (156, 1646890), (168, 1529255), (182, 1411620), (195, 1317512), (196, 1310790), (210, 1223404), (245, 1048632), (260, 988134), (273, 941080), (280, 917553), (294, 873860), (312, 823445), (364, 705810), (390, 658756), (392, 655395), (420, 611702), (455, 564648), (490, 524316), (520, 494067), (546, 470540), (588, 436930), (637, 403320), (728, 352905), (735, 349544), (780, 329378), (840, 305851), (910, 282324), (980, 262158), (1092, 235270), (1176, 218465), (1274, 201660), (1365, 188216), (1470, 174772), (1560, 164689), (1820, 141162), (1911, 134440), (1960, 131079), (2184, 117635), (2548, 100830), (2730, 94108), (2940, 87386), (3185, 80664), (3361, 76440), (3640, 70581), (3822, 67220), (5096, 50415), (5460, 47054), (5880, 43693), (6370, 40332), (6722, 38220), (7644, 33610), (9555, 26888), (10083, 25480), (10920, 23527), (12740, 20166), (13444, 19110), (15288, 16805)]