990905100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{661}}^1$

素因数の和:960

約数の個数: 144

約数和(自身を含む): 3033972480

約数和(自身を除く): 2043067380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 150, 190, 228, 263, 285, 300, 380, 475, 526, 570, 661, 789, 950, 1052, 1140, 1315, 1322, 1425, 1578, 1900, 1983, 2630, 2644, 2850, 3156, 3305, 3945, 3966, 4997, 5260, 5700, 6575, 6610, 7890, 7932, 9915, 9994, 12559, 13150, 13220, 14991, 15780, 16525, 19725, 19830, 19988, 24985, 25118, 26300, 29982, 33050, 37677, 39450, 39660, 49575, 49970, 50236, 59964, 62795, 66100, 74955, 75354, 78900, 99150, 99940, 124925, 125590, 149910, 150708, 173843, 188385, 198300, 249850, 251180, 299820, 313975, 347686, 374775, 376770, 499700, 521529, 627950, 695372, 749550, 753540, 869215, 941925, 1043058, 1255900, 1499100, 1738430, 1883850, 2086116, 2607645, 3303017, 3476860, 3767700, 4346075, 5215290, 6606034, 8692150, 9909051, 10430580, 13038225, 13212068, 16515085, 17384300, 19818102, 26076450, 33030170, 39636204, 49545255, 52152900, 66060340, 82575425, 99090510, 165150850, 198181020, 247726275, 330301700, 495452550, 990905100]

約数ペア:

[(1, 990905100), (2, 495452550), (3, 330301700), (4, 247726275), (5, 198181020), (6, 165150850), (10, 99090510), (12, 82575425), (15, 66060340), (19, 52152900), (20, 49545255), (25, 39636204), (30, 33030170), (38, 26076450), (50, 19818102), (57, 17384300), (60, 16515085), (75, 13212068), (76, 13038225), (95, 10430580), (100, 9909051), (114, 8692150), (150, 6606034), (190, 5215290), (228, 4346075), (263, 3767700), (285, 3476860), (300, 3303017), (380, 2607645), (475, 2086116), (526, 1883850), (570, 1738430), (661, 1499100), (789, 1255900), (950, 1043058), (1052, 941925), (1140, 869215), (1315, 753540), (1322, 749550), (1425, 695372), (1578, 627950), (1900, 521529), (1983, 499700), (2630, 376770), (2644, 374775), (2850, 347686), (3156, 313975), (3305, 299820), (3945, 251180), (3966, 249850), (4997, 198300), (5260, 188385), (5700, 173843), (6575, 150708), (6610, 149910), (7890, 125590), (7932, 124925), (9915, 99940), (9994, 99150), (12559, 78900), (13150, 75354), (13220, 74955), (14991, 66100), (15780, 62795), (16525, 59964), (19725, 50236), (19830, 49970), (19988, 49575), (24985, 39660), (25118, 39450), (26300, 37677), (29982, 33050)]