128920890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:524

約数の個数: 128

約数和(自身を含む): 377856000

約数和(自身を除く): 248935110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 79, 95, 105, 114, 133, 158, 190, 210, 237, 266, 285, 395, 399, 409, 474, 553, 570, 665, 790, 798, 818, 1106, 1185, 1227, 1330, 1501, 1659, 1995, 2045, 2370, 2454, 2765, 2863, 3002, 3318, 3990, 4090, 4503, 5530, 5726, 6135, 7505, 7771, 8295, 8589, 9006, 10507, 12270, 14315, 15010, 15542, 16590, 17178, 21014, 22515, 23313, 28630, 31521, 32311, 38855, 42945, 45030, 46626, 52535, 54397, 63042, 64622, 77710, 85890, 96933, 105070, 108794, 116565, 157605, 161555, 163191, 193866, 226177, 233130, 271985, 315210, 323110, 326382, 452354, 484665, 543970, 613909, 678531, 815955, 969330, 1130885, 1227818, 1357062, 1631910, 1841727, 2261770, 3069545, 3392655, 3683454, 4297363, 6139090, 6785310, 8594726, 9208635, 12892089, 18417270, 21486815, 25784178, 42973630, 64460445, 128920890]

約数ペア:

[(1, 128920890), (2, 64460445), (3, 42973630), (5, 25784178), (6, 21486815), (7, 18417270), (10, 12892089), (14, 9208635), (15, 8594726), (19, 6785310), (21, 6139090), (30, 4297363), (35, 3683454), (38, 3392655), (42, 3069545), (57, 2261770), (70, 1841727), (79, 1631910), (95, 1357062), (105, 1227818), (114, 1130885), (133, 969330), (158, 815955), (190, 678531), (210, 613909), (237, 543970), (266, 484665), (285, 452354), (395, 326382), (399, 323110), (409, 315210), (474, 271985), (553, 233130), (570, 226177), (665, 193866), (790, 163191), (798, 161555), (818, 157605), (1106, 116565), (1185, 108794), (1227, 105070), (1330, 96933), (1501, 85890), (1659, 77710), (1995, 64622), (2045, 63042), (2370, 54397), (2454, 52535), (2765, 46626), (2863, 45030), (3002, 42945), (3318, 38855), (3990, 32311), (4090, 31521), (4503, 28630), (5530, 23313), (5726, 22515), (6135, 21014), (7505, 17178), (7771, 16590), (8295, 15542), (8589, 15010), (9006, 14315), (10507, 12270)]