42872720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 113201088

約数和(自身を除く): 70328368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 103, 110, 121, 172, 176, 206, 215, 220, 242, 344, 412, 430, 440, 473, 484, 515, 605, 688, 824, 860, 880, 946, 968, 1030, 1133, 1210, 1648, 1720, 1892, 1936, 2060, 2266, 2365, 2420, 3440, 3784, 4120, 4429, 4532, 4730, 4840, 5203, 5665, 7568, 8240, 8858, 9064, 9460, 9680, 10406, 11330, 12463, 17716, 18128, 18920, 20812, 22145, 22660, 24926, 26015, 35432, 37840, 41624, 44290, 45320, 48719, 49852, 52030, 62315, 70864, 83248, 88580, 90640, 97438, 99704, 104060, 124630, 177160, 194876, 199408, 208120, 243595, 249260, 354320, 389752, 416240, 487190, 498520, 535909, 779504, 974380, 997040, 1071818, 1948760, 2143636, 2679545, 3897520, 4287272, 5359090, 8574544, 10718180, 21436360, 42872720]

約数ペア:

[(1, 42872720), (2, 21436360), (4, 10718180), (5, 8574544), (8, 5359090), (10, 4287272), (11, 3897520), (16, 2679545), (20, 2143636), (22, 1948760), (40, 1071818), (43, 997040), (44, 974380), (55, 779504), (80, 535909), (86, 498520), (88, 487190), (103, 416240), (110, 389752), (121, 354320), (172, 249260), (176, 243595), (206, 208120), (215, 199408), (220, 194876), (242, 177160), (344, 124630), (412, 104060), (430, 99704), (440, 97438), (473, 90640), (484, 88580), (515, 83248), (605, 70864), (688, 62315), (824, 52030), (860, 49852), (880, 48719), (946, 45320), (968, 44290), (1030, 41624), (1133, 37840), (1210, 35432), (1648, 26015), (1720, 24926), (1892, 22660), (1936, 22145), (2060, 20812), (2266, 18920), (2365, 18128), (2420, 17716), (3440, 12463), (3784, 11330), (4120, 10406), (4429, 9680), (4532, 9460), (4730, 9064), (4840, 8858), (5203, 8240), (5665, 7568)]