1387260720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{5821}}^1$

素因数の和:6171

約数の個数: 120

約数和(自身を含む): 4673761872

約数和(自身を除く): 3286501152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 331, 360, 662, 720, 993, 1324, 1655, 1986, 2648, 2979, 3310, 3972, 4965, 5296, 5821, 5958, 6620, 7944, 9930, 11642, 11916, 13240, 14895, 15888, 17463, 19860, 23284, 23832, 26480, 29105, 29790, 34926, 39720, 46568, 47664, 52389, 58210, 59580, 69852, 79440, 87315, 93136, 104778, 116420, 119160, 139704, 174630, 209556, 232840, 238320, 261945, 279408, 349260, 419112, 465680, 523890, 698520, 838224, 1047780, 1397040, 1926751, 2095560, 3853502, 4191120, 5780253, 7707004, 9633755, 11560506, 15414008, 17340759, 19267510, 23121012, 28901265, 30828016, 34681518, 38535020, 46242024, 57802530, 69363036, 77070040, 86703795, 92484048, 115605060, 138726072, 154140080, 173407590, 231210120, 277452144, 346815180, 462420240, 693630360, 1387260720]

約数ペア:

[(1, 1387260720), (2, 693630360), (3, 462420240), (4, 346815180), (5, 277452144), (6, 231210120), (8, 173407590), (9, 154140080), (10, 138726072), (12, 115605060), (15, 92484048), (16, 86703795), (18, 77070040), (20, 69363036), (24, 57802530), (30, 46242024), (36, 38535020), (40, 34681518), (45, 30828016), (48, 28901265), (60, 23121012), (72, 19267510), (80, 17340759), (90, 15414008), (120, 11560506), (144, 9633755), (180, 7707004), (240, 5780253), (331, 4191120), (360, 3853502), (662, 2095560), (720, 1926751), (993, 1397040), (1324, 1047780), (1655, 838224), (1986, 698520), (2648, 523890), (2979, 465680), (3310, 419112), (3972, 349260), (4965, 279408), (5296, 261945), (5821, 238320), (5958, 232840), (6620, 209556), (7944, 174630), (9930, 139704), (11642, 119160), (11916, 116420), (13240, 104778), (14895, 93136), (15888, 87315), (17463, 79440), (19860, 69852), (23284, 59580), (23832, 58210), (26480, 52389), (29105, 47664), (29790, 46568), (34926, 39720)]