30142840

素因数分解:

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

素因数の和:71

約数の個数: 128

約数和(自身を含む): 85680000

約数和(自身を除く): 55537160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 169, 182, 196, 245, 260, 280, 338, 343, 364, 392, 455, 490, 520, 637, 676, 686, 728, 845, 910, 980, 1183, 1274, 1352, 1372, 1690, 1715, 1820, 1960, 2197, 2366, 2548, 2744, 3185, 3380, 3430, 3640, 4394, 4459, 4732, 5096, 5915, 6370, 6760, 6860, 8281, 8788, 8918, 9464, 10985, 11830, 12740, 13720, 15379, 16562, 17576, 17836, 21970, 22295, 23660, 25480, 30758, 33124, 35672, 41405, 43940, 44590, 47320, 57967, 61516, 66248, 76895, 82810, 87880, 89180, 107653, 115934, 123032, 153790, 165620, 178360, 215306, 231868, 289835, 307580, 331240, 430612, 463736, 538265, 579670, 615160, 753571, 861224, 1076530, 1159340, 1507142, 2153060, 2318680, 3014284, 3767855, 4306120, 6028568, 7535710, 15071420, 30142840]

約数ペア:

[(1, 30142840), (2, 15071420), (4, 7535710), (5, 6028568), (7, 4306120), (8, 3767855), (10, 3014284), (13, 2318680), (14, 2153060), (20, 1507142), (26, 1159340), (28, 1076530), (35, 861224), (40, 753571), (49, 615160), (52, 579670), (56, 538265), (65, 463736), (70, 430612), (91, 331240), (98, 307580), (104, 289835), (130, 231868), (140, 215306), (169, 178360), (182, 165620), (196, 153790), (245, 123032), (260, 115934), (280, 107653), (338, 89180), (343, 87880), (364, 82810), (392, 76895), (455, 66248), (490, 61516), (520, 57967), (637, 47320), (676, 44590), (686, 43940), (728, 41405), (845, 35672), (910, 33124), (980, 30758), (1183, 25480), (1274, 23660), (1352, 22295), (1372, 21970), (1690, 17836), (1715, 17576), (1820, 16562), (1960, 15379), (2197, 13720), (2366, 12740), (2548, 11830), (2744, 10985), (3185, 9464), (3380, 8918), (3430, 8788), (3640, 8281), (4394, 6860), (4459, 6760), (4732, 6370), (5096, 5915)]