20954150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 49282560

約数和(自身を除く): 28328410

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 25, 35, 38, 46, 50, 70, 95, 115, 133, 137, 161, 175, 190, 230, 266, 274, 322, 350, 437, 475, 575, 665, 685, 805, 874, 950, 959, 1150, 1330, 1370, 1610, 1918, 2185, 2603, 3059, 3151, 3325, 3425, 4025, 4370, 4795, 5206, 6118, 6302, 6650, 6850, 8050, 9590, 10925, 13015, 15295, 15755, 18221, 21850, 22057, 23975, 26030, 30590, 31510, 36442, 44114, 47950, 59869, 65075, 76475, 78775, 91105, 110285, 119738, 130150, 152950, 157550, 182210, 220570, 299345, 419083, 455525, 551425, 598690, 838166, 911050, 1102850, 1496725, 2095415, 2993450, 4190830, 10477075, 20954150]

約数ペア:

[(1, 20954150), (2, 10477075), (5, 4190830), (7, 2993450), (10, 2095415), (14, 1496725), (19, 1102850), (23, 911050), (25, 838166), (35, 598690), (38, 551425), (46, 455525), (50, 419083), (70, 299345), (95, 220570), (115, 182210), (133, 157550), (137, 152950), (161, 130150), (175, 119738), (190, 110285), (230, 91105), (266, 78775), (274, 76475), (322, 65075), (350, 59869), (437, 47950), (475, 44114), (575, 36442), (665, 31510), (685, 30590), (805, 26030), (874, 23975), (950, 22057), (959, 21850), (1150, 18221), (1330, 15755), (1370, 15295), (1610, 13015), (1918, 10925), (2185, 9590), (2603, 8050), (3059, 6850), (3151, 6650), (3325, 6302), (3425, 6118), (4025, 5206), (4370, 4795)]