20102940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 216

約数和(自身を含む): 73198944

約数和(自身を除く): 53096004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 71, 78, 90, 99, 110, 117, 121, 130, 132, 142, 143, 156, 165, 180, 195, 198, 213, 220, 234, 242, 260, 284, 286, 330, 355, 363, 390, 396, 426, 429, 468, 484, 495, 572, 585, 605, 639, 660, 710, 715, 726, 780, 781, 852, 858, 923, 990, 1065, 1089, 1170, 1210, 1278, 1287, 1420, 1430, 1452, 1562, 1573, 1716, 1815, 1846, 1980, 2130, 2145, 2178, 2340, 2343, 2420, 2556, 2574, 2769, 2860, 3124, 3146, 3195, 3630, 3692, 3905, 4260, 4290, 4356, 4615, 4686, 4719, 5148, 5445, 5538, 6292, 6390, 6435, 7029, 7260, 7810, 7865, 8307, 8580, 8591, 9230, 9372, 9438, 10153, 10890, 11076, 11715, 12780, 12870, 13845, 14058, 14157, 15620, 15730, 16614, 17182, 18460, 18876, 20306, 21780, 23430, 23595, 25740, 25773, 27690, 28116, 28314, 30459, 31460, 33228, 34364, 35145, 40612, 41535, 42955, 46860, 47190, 50765, 51546, 55380, 56628, 60918, 70290, 70785, 77319, 83070, 85910, 91377, 94380, 101530, 103092, 111683, 121836, 128865, 140580, 141570, 152295, 154638, 166140, 171820, 182754, 203060, 223366, 257730, 283140, 304590, 309276, 335049, 365508, 386595, 446732, 456885, 515460, 558415, 609180, 670098, 773190, 913770, 1005147, 1116830, 1340196, 1546380, 1675245, 1827540, 2010294, 2233660, 3350490, 4020588, 5025735, 6700980, 10051470, 20102940]

約数ペア:

[(1, 20102940), (2, 10051470), (3, 6700980), (4, 5025735), (5, 4020588), (6, 3350490), (9, 2233660), (10, 2010294), (11, 1827540), (12, 1675245), (13, 1546380), (15, 1340196), (18, 1116830), (20, 1005147), (22, 913770), (26, 773190), (30, 670098), (33, 609180), (36, 558415), (39, 515460), (44, 456885), (45, 446732), (52, 386595), (55, 365508), (60, 335049), (65, 309276), (66, 304590), (71, 283140), (78, 257730), (90, 223366), (99, 203060), (110, 182754), (117, 171820), (121, 166140), (130, 154638), (132, 152295), (142, 141570), (143, 140580), (156, 128865), (165, 121836), (180, 111683), (195, 103092), (198, 101530), (213, 94380), (220, 91377), (234, 85910), (242, 83070), (260, 77319), (284, 70785), (286, 70290), (330, 60918), (355, 56628), (363, 55380), (390, 51546), (396, 50765), (426, 47190), (429, 46860), (468, 42955), (484, 41535), (495, 40612), (572, 35145), (585, 34364), (605, 33228), (639, 31460), (660, 30459), (710, 28314), (715, 28116), (726, 27690), (780, 25773), (781, 25740), (852, 23595), (858, 23430), (923, 21780), (990, 20306), (1065, 18876), (1089, 18460), (1170, 17182), (1210, 16614), (1278, 15730), (1287, 15620), (1420, 14157), (1430, 14058), (1452, 13845), (1562, 12870), (1573, 12780), (1716, 11715), (1815, 11076), (1846, 10890), (1980, 10153), (2130, 9438), (2145, 9372), (2178, 9230), (2340, 8591), (2343, 8580), (2420, 8307), (2556, 7865), (2574, 7810), (2769, 7260), (2860, 7029), (3124, 6435), (3146, 6390), (3195, 6292), (3630, 5538), (3692, 5445), (3905, 5148), (4260, 4719), (4290, 4686), (4356, 4615)]