28020238260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{163117}}^1$

素因数の和:163545

約数の個数: 96

約数和(自身を含む): 89884542720

約数和(自身を除く): 61864304460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 409, 420, 818, 1227, 1636, 2045, 2454, 2863, 4090, 4908, 5726, 6135, 8180, 8589, 11452, 12270, 14315, 17178, 24540, 28630, 34356, 42945, 57260, 85890, 163117, 171780, 326234, 489351, 652468, 815585, 978702, 1141819, 1631170, 1957404, 2283638, 2446755, 3262340, 3425457, 4567276, 4893510, 5709095, 6850914, 9787020, 11418190, 13701828, 17127285, 22836380, 34254570, 66714853, 68509140, 133429706, 200144559, 266859412, 333574265, 400289118, 467003971, 667148530, 800578236, 934007942, 1000722795, 1334297060, 1401011913, 1868015884, 2001445590, 2335019855, 2802023826, 4002891180, 4670039710, 5604047652, 7005059565, 9340079420, 14010119130, 28020238260]

約数ペア:

[(1, 28020238260), (2, 14010119130), (3, 9340079420), (4, 7005059565), (5, 5604047652), (6, 4670039710), (7, 4002891180), (10, 2802023826), (12, 2335019855), (14, 2001445590), (15, 1868015884), (20, 1401011913), (21, 1334297060), (28, 1000722795), (30, 934007942), (35, 800578236), (42, 667148530), (60, 467003971), (70, 400289118), (84, 333574265), (105, 266859412), (140, 200144559), (210, 133429706), (409, 68509140), (420, 66714853), (818, 34254570), (1227, 22836380), (1636, 17127285), (2045, 13701828), (2454, 11418190), (2863, 9787020), (4090, 6850914), (4908, 5709095), (5726, 4893510), (6135, 4567276), (8180, 3425457), (8589, 3262340), (11452, 2446755), (12270, 2283638), (14315, 1957404), (17178, 1631170), (24540, 1141819), (28630, 978702), (34356, 815585), (42945, 652468), (57260, 489351), (85890, 326234), (163117, 171780)]