31515480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 160

約数和(自身を含む): 108203040

約数和(自身を除く): 76687560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 81, 90, 108, 120, 135, 137, 142, 162, 180, 213, 216, 270, 274, 284, 324, 355, 360, 405, 411, 426, 540, 548, 568, 639, 648, 685, 710, 810, 822, 852, 1065, 1080, 1096, 1233, 1278, 1370, 1420, 1620, 1644, 1704, 1917, 2055, 2130, 2466, 2556, 2740, 2840, 3195, 3240, 3288, 3699, 3834, 4110, 4260, 4932, 5112, 5480, 5751, 6165, 6390, 7398, 7668, 8220, 8520, 9585, 9727, 9864, 11097, 11502, 12330, 12780, 14796, 15336, 16440, 18495, 19170, 19454, 22194, 23004, 24660, 25560, 28755, 29181, 29592, 36990, 38340, 38908, 44388, 46008, 48635, 49320, 55485, 57510, 58362, 73980, 76680, 77816, 87543, 88776, 97270, 110970, 115020, 116724, 145905, 147960, 175086, 194540, 221940, 230040, 233448, 262629, 291810, 350172, 389080, 437715, 443880, 525258, 583620, 700344, 787887, 875430, 1050516, 1167240, 1313145, 1575774, 1750860, 2101032, 2626290, 3151548, 3501720, 3939435, 5252580, 6303096, 7878870, 10505160, 15757740, 31515480]

約数ペア:

[(1, 31515480), (2, 15757740), (3, 10505160), (4, 7878870), (5, 6303096), (6, 5252580), (8, 3939435), (9, 3501720), (10, 3151548), (12, 2626290), (15, 2101032), (18, 1750860), (20, 1575774), (24, 1313145), (27, 1167240), (30, 1050516), (36, 875430), (40, 787887), (45, 700344), (54, 583620), (60, 525258), (71, 443880), (72, 437715), (81, 389080), (90, 350172), (108, 291810), (120, 262629), (135, 233448), (137, 230040), (142, 221940), (162, 194540), (180, 175086), (213, 147960), (216, 145905), (270, 116724), (274, 115020), (284, 110970), (324, 97270), (355, 88776), (360, 87543), (405, 77816), (411, 76680), (426, 73980), (540, 58362), (548, 57510), (568, 55485), (639, 49320), (648, 48635), (685, 46008), (710, 44388), (810, 38908), (822, 38340), (852, 36990), (1065, 29592), (1080, 29181), (1096, 28755), (1233, 25560), (1278, 24660), (1370, 23004), (1420, 22194), (1620, 19454), (1644, 19170), (1704, 18495), (1917, 16440), (2055, 15336), (2130, 14796), (2466, 12780), (2556, 12330), (2740, 11502), (2840, 11097), (3195, 9864), (3240, 9727), (3288, 9585), (3699, 8520), (3834, 8220), (4110, 7668), (4260, 7398), (4932, 6390), (5112, 6165), (5480, 5751)]