20045040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^4$

素因数の和:84

約数の個数: 100

約数和(自身を含む): 66023304

約数和(自身を除く): 45978264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 289, 340, 408, 510, 578, 680, 816, 867, 1020, 1156, 1360, 1445, 1734, 2040, 2312, 2890, 3468, 4080, 4335, 4624, 4913, 5780, 6936, 8670, 9826, 11560, 13872, 14739, 17340, 19652, 23120, 24565, 29478, 34680, 39304, 49130, 58956, 69360, 73695, 78608, 83521, 98260, 117912, 147390, 167042, 196520, 235824, 250563, 294780, 334084, 393040, 417605, 501126, 589560, 668168, 835210, 1002252, 1179120, 1252815, 1336336, 1670420, 2004504, 2505630, 3340840, 4009008, 5011260, 6681680, 10022520, 20045040]

約数ペア:

[(1, 20045040), (2, 10022520), (3, 6681680), (4, 5011260), (5, 4009008), (6, 3340840), (8, 2505630), (10, 2004504), (12, 1670420), (15, 1336336), (16, 1252815), (17, 1179120), (20, 1002252), (24, 835210), (30, 668168), (34, 589560), (40, 501126), (48, 417605), (51, 393040), (60, 334084), (68, 294780), (80, 250563), (85, 235824), (102, 196520), (120, 167042), (136, 147390), (170, 117912), (204, 98260), (240, 83521), (255, 78608), (272, 73695), (289, 69360), (340, 58956), (408, 49130), (510, 39304), (578, 34680), (680, 29478), (816, 24565), (867, 23120), (1020, 19652), (1156, 17340), (1360, 14739), (1445, 13872), (1734, 11560), (2040, 9826), (2312, 8670), (2890, 6936), (3468, 5780), (4080, 4913), (4335, 4624)]