128985220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:701

約数の個数: 96

約数和(自身を含む): 336542976

約数和(自身を除く): 207557756

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 131, 140, 182, 260, 262, 364, 455, 524, 541, 655, 910, 917, 1082, 1310, 1703, 1820, 1834, 2164, 2620, 2705, 3406, 3668, 3787, 4585, 5410, 6812, 7033, 7574, 8515, 9170, 10820, 11921, 14066, 15148, 17030, 18340, 18935, 23842, 28132, 34060, 35165, 37870, 47684, 49231, 59605, 70330, 70871, 75740, 98462, 119210, 140660, 141742, 196924, 238420, 246155, 283484, 354355, 492310, 496097, 708710, 921323, 984620, 992194, 1417420, 1842646, 1984388, 2480485, 3685292, 4606615, 4960970, 6449261, 9213230, 9921940, 12898522, 18426460, 25797044, 32246305, 64492610, 128985220]

約数ペア:

[(1, 128985220), (2, 64492610), (4, 32246305), (5, 25797044), (7, 18426460), (10, 12898522), (13, 9921940), (14, 9213230), (20, 6449261), (26, 4960970), (28, 4606615), (35, 3685292), (52, 2480485), (65, 1984388), (70, 1842646), (91, 1417420), (130, 992194), (131, 984620), (140, 921323), (182, 708710), (260, 496097), (262, 492310), (364, 354355), (455, 283484), (524, 246155), (541, 238420), (655, 196924), (910, 141742), (917, 140660), (1082, 119210), (1310, 98462), (1703, 75740), (1820, 70871), (1834, 70330), (2164, 59605), (2620, 49231), (2705, 47684), (3406, 37870), (3668, 35165), (3787, 34060), (4585, 28132), (5410, 23842), (6812, 18935), (7033, 18340), (7574, 17030), (8515, 15148), (9170, 14066), (10820, 11921)]