251963880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{587}}^1$

素因数の和:688

約数の個数: 192

約数和(自身を含む): 892866240

約数和(自身を除く): 640902360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 73, 84, 98, 105, 120, 140, 146, 147, 168, 196, 210, 219, 245, 280, 292, 294, 365, 392, 420, 438, 490, 511, 584, 587, 588, 730, 735, 840, 876, 980, 1022, 1095, 1174, 1176, 1460, 1470, 1533, 1752, 1761, 1960, 2044, 2190, 2348, 2555, 2920, 2935, 2940, 3066, 3522, 3577, 4088, 4109, 4380, 4696, 5110, 5870, 5880, 6132, 7044, 7154, 7665, 8218, 8760, 8805, 10220, 10731, 11740, 12264, 12327, 14088, 14308, 15330, 16436, 17610, 17885, 20440, 20545, 21462, 23480, 24654, 28616, 28763, 30660, 32872, 35220, 35770, 41090, 42851, 42924, 49308, 53655, 57526, 61320, 61635, 70440, 71540, 82180, 85702, 85848, 86289, 98616, 107310, 115052, 123270, 128553, 143080, 143815, 164360, 171404, 172578, 214255, 214620, 230104, 246540, 257106, 287630, 299957, 342808, 345156, 428510, 429240, 431445, 493080, 514212, 575260, 599914, 642765, 690312, 857020, 862890, 899871, 1028424, 1150520, 1199828, 1285530, 1499785, 1714040, 1725780, 1799742, 2099699, 2399656, 2571060, 2999570, 3451560, 3599484, 4199398, 4499355, 5142120, 5999140, 6299097, 7198968, 8398796, 8998710, 10498495, 11998280, 12598194, 16797592, 17997420, 20996990, 25196388, 31495485, 35994840, 41993980, 50392776, 62990970, 83987960, 125981940, 251963880]

約数ペア:

[(1, 251963880), (2, 125981940), (3, 83987960), (4, 62990970), (5, 50392776), (6, 41993980), (7, 35994840), (8, 31495485), (10, 25196388), (12, 20996990), (14, 17997420), (15, 16797592), (20, 12598194), (21, 11998280), (24, 10498495), (28, 8998710), (30, 8398796), (35, 7198968), (40, 6299097), (42, 5999140), (49, 5142120), (56, 4499355), (60, 4199398), (70, 3599484), (73, 3451560), (84, 2999570), (98, 2571060), (105, 2399656), (120, 2099699), (140, 1799742), (146, 1725780), (147, 1714040), (168, 1499785), (196, 1285530), (210, 1199828), (219, 1150520), (245, 1028424), (280, 899871), (292, 862890), (294, 857020), (365, 690312), (392, 642765), (420, 599914), (438, 575260), (490, 514212), (511, 493080), (584, 431445), (587, 429240), (588, 428510), (730, 345156), (735, 342808), (840, 299957), (876, 287630), (980, 257106), (1022, 246540), (1095, 230104), (1174, 214620), (1176, 214255), (1460, 172578), (1470, 171404), (1533, 164360), (1752, 143815), (1761, 143080), (1960, 128553), (2044, 123270), (2190, 115052), (2348, 107310), (2555, 98616), (2920, 86289), (2935, 85848), (2940, 85702), (3066, 82180), (3522, 71540), (3577, 70440), (4088, 61635), (4109, 61320), (4380, 57526), (4696, 53655), (5110, 49308), (5870, 42924), (5880, 42851), (6132, 41090), (7044, 35770), (7154, 35220), (7665, 32872), (8218, 30660), (8760, 28763), (8805, 28616), (10220, 24654), (10731, 23480), (11740, 21462), (12264, 20545), (12327, 20440), (14088, 17885), (14308, 17610), (15330, 16436)]