19551480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 64350720

約数和(自身を除く): 44799240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 83, 104, 120, 130, 151, 156, 166, 195, 249, 260, 302, 312, 332, 390, 415, 453, 498, 520, 604, 664, 755, 780, 830, 906, 996, 1079, 1208, 1245, 1510, 1560, 1660, 1812, 1963, 1992, 2158, 2265, 2490, 3020, 3237, 3320, 3624, 3926, 4316, 4530, 4980, 5395, 5889, 6040, 6474, 7852, 8632, 9060, 9815, 9960, 10790, 11778, 12533, 12948, 15704, 16185, 18120, 19630, 21580, 23556, 25066, 25896, 29445, 32370, 37599, 39260, 43160, 47112, 50132, 58890, 62665, 64740, 75198, 78520, 100264, 117780, 125330, 129480, 150396, 162929, 187995, 235560, 250660, 300792, 325858, 375990, 488787, 501320, 651716, 751980, 814645, 977574, 1303432, 1503960, 1629290, 1955148, 2443935, 3258580, 3910296, 4887870, 6517160, 9775740, 19551480]

約数ペア:

[(1, 19551480), (2, 9775740), (3, 6517160), (4, 4887870), (5, 3910296), (6, 3258580), (8, 2443935), (10, 1955148), (12, 1629290), (13, 1503960), (15, 1303432), (20, 977574), (24, 814645), (26, 751980), (30, 651716), (39, 501320), (40, 488787), (52, 375990), (60, 325858), (65, 300792), (78, 250660), (83, 235560), (104, 187995), (120, 162929), (130, 150396), (151, 129480), (156, 125330), (166, 117780), (195, 100264), (249, 78520), (260, 75198), (302, 64740), (312, 62665), (332, 58890), (390, 50132), (415, 47112), (453, 43160), (498, 39260), (520, 37599), (604, 32370), (664, 29445), (755, 25896), (780, 25066), (830, 23556), (906, 21580), (996, 19630), (1079, 18120), (1208, 16185), (1245, 15704), (1510, 12948), (1560, 12533), (1660, 11778), (1812, 10790), (1963, 9960), (1992, 9815), (2158, 9060), (2265, 8632), (2490, 7852), (3020, 6474), (3237, 6040), (3320, 5889), (3624, 5395), (3926, 4980), (4316, 4530)]