78743720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:327

約数の個数: 128

約数和(自身を含む): 209018880

約数和(自身を除く): 130275160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 31, 40, 44, 46, 55, 62, 88, 92, 110, 115, 124, 155, 184, 220, 230, 248, 251, 253, 310, 341, 440, 460, 502, 506, 620, 682, 713, 920, 1004, 1012, 1240, 1255, 1265, 1364, 1426, 1705, 2008, 2024, 2510, 2530, 2728, 2761, 2852, 3410, 3565, 5020, 5060, 5522, 5704, 5773, 6820, 7130, 7781, 7843, 10040, 10120, 11044, 11546, 13640, 13805, 14260, 15562, 15686, 22088, 23092, 27610, 28520, 28865, 31124, 31372, 38905, 39215, 46184, 55220, 57730, 62248, 62744, 63503, 77810, 78430, 85591, 110440, 115460, 127006, 155620, 156860, 171182, 178963, 230920, 254012, 311240, 313720, 317515, 342364, 357926, 427955, 508024, 635030, 684728, 715852, 855910, 894815, 1270060, 1431704, 1711820, 1789630, 1968593, 2540120, 3423640, 3579260, 3937186, 7158520, 7874372, 9842965, 15748744, 19685930, 39371860, 78743720]

約数ペア:

[(1, 78743720), (2, 39371860), (4, 19685930), (5, 15748744), (8, 9842965), (10, 7874372), (11, 7158520), (20, 3937186), (22, 3579260), (23, 3423640), (31, 2540120), (40, 1968593), (44, 1789630), (46, 1711820), (55, 1431704), (62, 1270060), (88, 894815), (92, 855910), (110, 715852), (115, 684728), (124, 635030), (155, 508024), (184, 427955), (220, 357926), (230, 342364), (248, 317515), (251, 313720), (253, 311240), (310, 254012), (341, 230920), (440, 178963), (460, 171182), (502, 156860), (506, 155620), (620, 127006), (682, 115460), (713, 110440), (920, 85591), (1004, 78430), (1012, 77810), (1240, 63503), (1255, 62744), (1265, 62248), (1364, 57730), (1426, 55220), (1705, 46184), (2008, 39215), (2024, 38905), (2510, 31372), (2530, 31124), (2728, 28865), (2761, 28520), (2852, 27610), (3410, 23092), (3565, 22088), (5020, 15686), (5060, 15562), (5522, 14260), (5704, 13805), (5773, 13640), (6820, 11546), (7130, 11044), (7781, 10120), (7843, 10040)]