20172903940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{169321}}^1$

素因数の和:169397

約数の個数: 96

約数和(自身を含む): 51885679104

約数和(自身を除く): 31712775164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 37, 46, 70, 74, 92, 115, 140, 148, 161, 185, 230, 259, 322, 370, 460, 518, 644, 740, 805, 851, 1036, 1295, 1610, 1702, 2590, 3220, 3404, 4255, 5180, 5957, 8510, 11914, 17020, 23828, 29785, 59570, 119140, 169321, 338642, 677284, 846605, 1185247, 1693210, 2370494, 3386420, 3894383, 4740988, 5926235, 6264877, 7788766, 11852470, 12529754, 15577532, 19471915, 23704940, 25059508, 27260681, 31324385, 38943830, 43854139, 54521362, 62648770, 77887660, 87708278, 109042724, 125297540, 136303405, 144092171, 175416556, 219270695, 272606810, 288184342, 438541390, 545213620, 576368684, 720460855, 877082780, 1008645197, 1440921710, 2017290394, 2881843420, 4034580788, 5043225985, 10086451970, 20172903940]

約数ペア:

[(1, 20172903940), (2, 10086451970), (4, 5043225985), (5, 4034580788), (7, 2881843420), (10, 2017290394), (14, 1440921710), (20, 1008645197), (23, 877082780), (28, 720460855), (35, 576368684), (37, 545213620), (46, 438541390), (70, 288184342), (74, 272606810), (92, 219270695), (115, 175416556), (140, 144092171), (148, 136303405), (161, 125297540), (185, 109042724), (230, 87708278), (259, 77887660), (322, 62648770), (370, 54521362), (460, 43854139), (518, 38943830), (644, 31324385), (740, 27260681), (805, 25059508), (851, 23704940), (1036, 19471915), (1295, 15577532), (1610, 12529754), (1702, 11852470), (2590, 7788766), (3220, 6264877), (3404, 5926235), (4255, 4740988), (5180, 3894383), (5957, 3386420), (8510, 2370494), (11914, 1693210), (17020, 1185247), (23828, 846605), (29785, 677284), (59570, 338642), (119140, 169321)]