1380240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{71}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 4874688

約数和(自身を除く): 3494448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 71, 72, 80, 81, 90, 108, 120, 135, 142, 144, 162, 180, 213, 216, 240, 243, 270, 284, 324, 355, 360, 405, 426, 432, 486, 540, 568, 639, 648, 710, 720, 810, 852, 972, 1065, 1080, 1136, 1215, 1278, 1296, 1420, 1620, 1704, 1917, 1944, 2130, 2160, 2430, 2556, 2840, 3195, 3240, 3408, 3834, 3888, 4260, 4860, 5112, 5680, 5751, 6390, 6480, 7668, 8520, 9585, 9720, 10224, 11502, 12780, 15336, 17040, 17253, 19170, 19440, 23004, 25560, 28755, 30672, 34506, 38340, 46008, 51120, 57510, 69012, 76680, 86265, 92016, 115020, 138024, 153360, 172530, 230040, 276048, 345060, 460080, 690120, 1380240]

約数ペア:

[(1, 1380240), (2, 690120), (3, 460080), (4, 345060), (5, 276048), (6, 230040), (8, 172530), (9, 153360), (10, 138024), (12, 115020), (15, 92016), (16, 86265), (18, 76680), (20, 69012), (24, 57510), (27, 51120), (30, 46008), (36, 38340), (40, 34506), (45, 30672), (48, 28755), (54, 25560), (60, 23004), (71, 19440), (72, 19170), (80, 17253), (81, 17040), (90, 15336), (108, 12780), (120, 11502), (135, 10224), (142, 9720), (144, 9585), (162, 8520), (180, 7668), (213, 6480), (216, 6390), (240, 5751), (243, 5680), (270, 5112), (284, 4860), (324, 4260), (355, 3888), (360, 3834), (405, 3408), (426, 3240), (432, 3195), (486, 2840), (540, 2556), (568, 2430), (639, 2160), (648, 2130), (710, 1944), (720, 1917), (810, 1704), (852, 1620), (972, 1420), (1065, 1296), (1080, 1278), (1136, 1215)]