281631780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1153}}^1$

素因数の和:1250

約数の個数: 144

約数和(自身を含む): 907320960

約数和(自身を除く): 625689180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 59, 60, 69, 90, 92, 115, 118, 138, 177, 180, 207, 230, 236, 276, 295, 345, 354, 414, 460, 531, 590, 690, 708, 828, 885, 1035, 1062, 1153, 1180, 1357, 1380, 1770, 2070, 2124, 2306, 2655, 2714, 3459, 3540, 4071, 4140, 4612, 5310, 5428, 5765, 6785, 6918, 8142, 10377, 10620, 11530, 12213, 13570, 13836, 16284, 17295, 20355, 20754, 23060, 24426, 26519, 27140, 34590, 40710, 41508, 48852, 51885, 53038, 61065, 68027, 69180, 79557, 81420, 103770, 106076, 122130, 132595, 136054, 159114, 204081, 207540, 238671, 244260, 265190, 272108, 318228, 340135, 397785, 408162, 477342, 530380, 612243, 680270, 795570, 816324, 954684, 1020405, 1193355, 1224486, 1360540, 1564621, 1591140, 2040810, 2386710, 2448972, 3061215, 3129242, 4081620, 4693863, 4773420, 6122430, 6258484, 7823105, 9387726, 12244860, 14081589, 15646210, 18775452, 23469315, 28163178, 31292420, 46938630, 56326356, 70407945, 93877260, 140815890, 281631780]

約数ペア:

[(1, 281631780), (2, 140815890), (3, 93877260), (4, 70407945), (5, 56326356), (6, 46938630), (9, 31292420), (10, 28163178), (12, 23469315), (15, 18775452), (18, 15646210), (20, 14081589), (23, 12244860), (30, 9387726), (36, 7823105), (45, 6258484), (46, 6122430), (59, 4773420), (60, 4693863), (69, 4081620), (90, 3129242), (92, 3061215), (115, 2448972), (118, 2386710), (138, 2040810), (177, 1591140), (180, 1564621), (207, 1360540), (230, 1224486), (236, 1193355), (276, 1020405), (295, 954684), (345, 816324), (354, 795570), (414, 680270), (460, 612243), (531, 530380), (590, 477342), (690, 408162), (708, 397785), (828, 340135), (885, 318228), (1035, 272108), (1062, 265190), (1153, 244260), (1180, 238671), (1357, 207540), (1380, 204081), (1770, 159114), (2070, 136054), (2124, 132595), (2306, 122130), (2655, 106076), (2714, 103770), (3459, 81420), (3540, 79557), (4071, 69180), (4140, 68027), (4612, 61065), (5310, 53038), (5428, 51885), (5765, 48852), (6785, 41508), (6918, 40710), (8142, 34590), (10377, 27140), (10620, 26519), (11530, 24426), (12213, 23060), (13570, 20754), (13836, 20355), (16284, 17295)]