72017920

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 186437160

約数和(自身を除く): 114419240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 541, 640, 832, 1024, 1040, 1082, 1280, 1664, 2048, 2080, 2164, 2560, 2705, 3328, 4160, 4328, 5120, 5410, 6656, 7033, 8320, 8656, 10240, 10820, 13312, 14066, 16640, 17312, 21640, 26624, 28132, 33280, 34624, 35165, 43280, 56264, 66560, 69248, 70330, 86560, 112528, 133120, 138496, 140660, 173120, 225056, 276992, 281320, 346240, 450112, 553984, 562640, 692480, 900224, 1107968, 1125280, 1384960, 1800448, 2250560, 2769920, 3600896, 4501120, 5539840, 7201792, 9002240, 14403584, 18004480, 36008960, 72017920]

約数ペア:

[(1, 72017920), (2, 36008960), (4, 18004480), (5, 14403584), (8, 9002240), (10, 7201792), (13, 5539840), (16, 4501120), (20, 3600896), (26, 2769920), (32, 2250560), (40, 1800448), (52, 1384960), (64, 1125280), (65, 1107968), (80, 900224), (104, 692480), (128, 562640), (130, 553984), (160, 450112), (208, 346240), (256, 281320), (260, 276992), (320, 225056), (416, 173120), (512, 140660), (520, 138496), (541, 133120), (640, 112528), (832, 86560), (1024, 70330), (1040, 69248), (1082, 66560), (1280, 56264), (1664, 43280), (2048, 35165), (2080, 34624), (2164, 33280), (2560, 28132), (2705, 26624), (3328, 21640), (4160, 17312), (4328, 16640), (5120, 14066), (5410, 13312), (6656, 10820), (7033, 10240), (8320, 8656)]