20199779440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{733}}^1\times {\mathrm{881}}^1$

素因数の和:1667

約数の個数: 160

約数和(自身を含む): 52018920576

約数和(自身を除く): 31819141136

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 733, 782, 881, 920, 1360, 1466, 1564, 1762, 1840, 1955, 2932, 3128, 3524, 3665, 3910, 4405, 5864, 6256, 7048, 7330, 7820, 8810, 11728, 12461, 14096, 14660, 14977, 15640, 16859, 17620, 20263, 24922, 29320, 29954, 31280, 33718, 35240, 40526, 49844, 58640, 59908, 62305, 67436, 70480, 74885, 81052, 84295, 99688, 101315, 119816, 124610, 134872, 149770, 162104, 168590, 199376, 202630, 239632, 249220, 269744, 286603, 299540, 324208, 337180, 344471, 405260, 498440, 573206, 599080, 645773, 674360, 688942, 810520, 996880, 1146412, 1198160, 1291546, 1348720, 1377884, 1433015, 1621040, 1722355, 2292824, 2583092, 2755768, 2866030, 3228865, 3444710, 4585648, 5166184, 5511536, 5732060, 6457730, 6889420, 10332368, 10978141, 11464120, 12915460, 13778840, 14852779, 21956282, 22928240, 25830920, 27557680, 29705558, 43912564, 51661840, 54890705, 59411116, 74263895, 87825128, 109781410, 118822232, 148527790, 175650256, 219562820, 237644464, 252497243, 297055580, 439125640, 504994486, 594111160, 878251280, 1009988972, 1188222320, 1262486215, 2019977944, 2524972430, 4039955888, 5049944860, 10099889720, 20199779440]

約数ペア:

[(1, 20199779440), (2, 10099889720), (4, 5049944860), (5, 4039955888), (8, 2524972430), (10, 2019977944), (16, 1262486215), (17, 1188222320), (20, 1009988972), (23, 878251280), (34, 594111160), (40, 504994486), (46, 439125640), (68, 297055580), (80, 252497243), (85, 237644464), (92, 219562820), (115, 175650256), (136, 148527790), (170, 118822232), (184, 109781410), (230, 87825128), (272, 74263895), (340, 59411116), (368, 54890705), (391, 51661840), (460, 43912564), (680, 29705558), (733, 27557680), (782, 25830920), (881, 22928240), (920, 21956282), (1360, 14852779), (1466, 13778840), (1564, 12915460), (1762, 11464120), (1840, 10978141), (1955, 10332368), (2932, 6889420), (3128, 6457730), (3524, 5732060), (3665, 5511536), (3910, 5166184), (4405, 4585648), (5864, 3444710), (6256, 3228865), (7048, 2866030), (7330, 2755768), (7820, 2583092), (8810, 2292824), (11728, 1722355), (12461, 1621040), (14096, 1433015), (14660, 1377884), (14977, 1348720), (15640, 1291546), (16859, 1198160), (17620, 1146412), (20263, 996880), (24922, 810520), (29320, 688942), (29954, 674360), (31280, 645773), (33718, 599080), (35240, 573206), (40526, 498440), (49844, 405260), (58640, 344471), (59908, 337180), (62305, 324208), (67436, 299540), (70480, 286603), (74885, 269744), (81052, 249220), (84295, 239632), (99688, 202630), (101315, 199376), (119816, 168590), (124610, 162104), (134872, 149770)]