219917720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:777

約数の個数: 128

約数和(自身を含む): 582266880

約数和(自身を除く): 362349160

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, 253, 310, 341, 440, 460, 506, 620, 682, 701, 713, 920, 1012, 1240, 1265, 1364, 1402, 1426, 1705, 2024, 2530, 2728, 2804, 2852, 3410, 3505, 3565, 5060, 5608, 5704, 6820, 7010, 7130, 7711, 7843, 10120, 13640, 14020, 14260, 15422, 15686, 16123, 21731, 28040, 28520, 30844, 31372, 32246, 38555, 39215, 43462, 61688, 62744, 64492, 77110, 78430, 80615, 86924, 108655, 128984, 154220, 156860, 161230, 173848, 177353, 217310, 239041, 308440, 313720, 322460, 354706, 434620, 478082, 499813, 644920, 709412, 869240, 886765, 956164, 999626, 1195205, 1418824, 1773530, 1912328, 1999252, 2390410, 2499065, 3547060, 3998504, 4780820, 4998130, 5497943, 7094120, 9561640, 9996260, 10995886, 19992520, 21991772, 27489715, 43983544, 54979430, 109958860, 219917720]

約数ペア:

[(1, 219917720), (2, 109958860), (4, 54979430), (5, 43983544), (8, 27489715), (10, 21991772), (11, 19992520), (20, 10995886), (22, 9996260), (23, 9561640), (31, 7094120), (40, 5497943), (44, 4998130), (46, 4780820), (55, 3998504), (62, 3547060), (88, 2499065), (92, 2390410), (110, 1999252), (115, 1912328), (124, 1773530), (155, 1418824), (184, 1195205), (220, 999626), (230, 956164), (248, 886765), (253, 869240), (310, 709412), (341, 644920), (440, 499813), (460, 478082), (506, 434620), (620, 354706), (682, 322460), (701, 313720), (713, 308440), (920, 239041), (1012, 217310), (1240, 177353), (1265, 173848), (1364, 161230), (1402, 156860), (1426, 154220), (1705, 128984), (2024, 108655), (2530, 86924), (2728, 80615), (2804, 78430), (2852, 77110), (3410, 64492), (3505, 62744), (3565, 61688), (5060, 43462), (5608, 39215), (5704, 38555), (6820, 32246), (7010, 31372), (7130, 30844), (7711, 28520), (7843, 28040), (10120, 21731), (13640, 16123), (14020, 15686), (14260, 15422)]