721337820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{3361}}^1$

素因数の和:3460

約数の個数: 144

約数和(自身を含む): 2382393888

約数和(自身を除く): 1661056068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 73, 84, 98, 105, 140, 146, 147, 196, 210, 219, 245, 292, 294, 365, 420, 438, 490, 511, 588, 730, 735, 876, 980, 1022, 1095, 1460, 1470, 1533, 2044, 2190, 2555, 2940, 3066, 3361, 3577, 4380, 5110, 6132, 6722, 7154, 7665, 10083, 10220, 10731, 13444, 14308, 15330, 16805, 17885, 20166, 21462, 23527, 30660, 33610, 35770, 40332, 42924, 47054, 50415, 53655, 67220, 70581, 71540, 94108, 100830, 107310, 117635, 141162, 164689, 201660, 214620, 235270, 245353, 282324, 329378, 352905, 470540, 490706, 494067, 658756, 705810, 736059, 823445, 981412, 988134, 1226765, 1411620, 1472118, 1646890, 1717471, 1976268, 2453530, 2470335, 2944236, 3293780, 3434942, 3680295, 4907060, 4940670, 5152413, 6869884, 7360590, 8587355, 9881340, 10304826, 12022297, 14721180, 17174710, 20609652, 24044594, 25762065, 34349420, 36066891, 48089188, 51524130, 60111485, 72133782, 103048260, 120222970, 144267564, 180334455, 240445940, 360668910, 721337820]

約数ペア:

[(1, 721337820), (2, 360668910), (3, 240445940), (4, 180334455), (5, 144267564), (6, 120222970), (7, 103048260), (10, 72133782), (12, 60111485), (14, 51524130), (15, 48089188), (20, 36066891), (21, 34349420), (28, 25762065), (30, 24044594), (35, 20609652), (42, 17174710), (49, 14721180), (60, 12022297), (70, 10304826), (73, 9881340), (84, 8587355), (98, 7360590), (105, 6869884), (140, 5152413), (146, 4940670), (147, 4907060), (196, 3680295), (210, 3434942), (219, 3293780), (245, 2944236), (292, 2470335), (294, 2453530), (365, 1976268), (420, 1717471), (438, 1646890), (490, 1472118), (511, 1411620), (588, 1226765), (730, 988134), (735, 981412), (876, 823445), (980, 736059), (1022, 705810), (1095, 658756), (1460, 494067), (1470, 490706), (1533, 470540), (2044, 352905), (2190, 329378), (2555, 282324), (2940, 245353), (3066, 235270), (3361, 214620), (3577, 201660), (4380, 164689), (5110, 141162), (6132, 117635), (6722, 107310), (7154, 100830), (7665, 94108), (10083, 71540), (10220, 70581), (10731, 67220), (13444, 53655), (14308, 50415), (15330, 47054), (16805, 42924), (17885, 40332), (20166, 35770), (21462, 33610), (23527, 30660)]