19516950

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 120

約数和(自身を含む): 55814880

約数和(自身を除く): 36297930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 61, 75, 79, 81, 90, 122, 135, 150, 158, 162, 183, 225, 237, 270, 305, 366, 395, 405, 450, 474, 549, 610, 675, 711, 790, 810, 915, 1098, 1185, 1350, 1422, 1525, 1647, 1830, 1975, 2025, 2133, 2370, 2745, 3050, 3294, 3555, 3950, 4050, 4266, 4575, 4819, 4941, 5490, 5925, 6399, 7110, 8235, 9150, 9638, 9882, 10665, 11850, 12798, 13725, 14457, 16470, 17775, 21330, 24095, 24705, 27450, 28914, 31995, 35550, 41175, 43371, 48190, 49410, 53325, 63990, 72285, 82350, 86742, 106650, 120475, 123525, 130113, 144570, 159975, 216855, 240950, 247050, 260226, 319950, 361425, 390339, 433710, 650565, 722850, 780678, 1084275, 1301130, 1951695, 2168550, 3252825, 3903390, 6505650, 9758475, 19516950]

約数ペア:

[(1, 19516950), (2, 9758475), (3, 6505650), (5, 3903390), (6, 3252825), (9, 2168550), (10, 1951695), (15, 1301130), (18, 1084275), (25, 780678), (27, 722850), (30, 650565), (45, 433710), (50, 390339), (54, 361425), (61, 319950), (75, 260226), (79, 247050), (81, 240950), (90, 216855), (122, 159975), (135, 144570), (150, 130113), (158, 123525), (162, 120475), (183, 106650), (225, 86742), (237, 82350), (270, 72285), (305, 63990), (366, 53325), (395, 49410), (405, 48190), (450, 43371), (474, 41175), (549, 35550), (610, 31995), (675, 28914), (711, 27450), (790, 24705), (810, 24095), (915, 21330), (1098, 17775), (1185, 16470), (1350, 14457), (1422, 13725), (1525, 12798), (1647, 11850), (1830, 10665), (1975, 9882), (2025, 9638), (2133, 9150), (2370, 8235), (2745, 7110), (3050, 6399), (3294, 5925), (3555, 5490), (3950, 4941), (4050, 4819), (4266, 4575)]