20669220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:123

約数の個数: 216

約数和(自身を含む): 75232248

約数和(自身を除く): 54563028

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, 73, 78, 90, 99, 110, 117, 121, 130, 132, 143, 146, 156, 165, 180, 195, 198, 219, 220, 234, 242, 260, 286, 292, 330, 363, 365, 390, 396, 429, 438, 468, 484, 495, 572, 585, 605, 657, 660, 715, 726, 730, 780, 803, 858, 876, 949, 990, 1089, 1095, 1170, 1210, 1287, 1314, 1430, 1452, 1460, 1573, 1606, 1716, 1815, 1898, 1980, 2145, 2178, 2190, 2340, 2409, 2420, 2574, 2628, 2847, 2860, 3146, 3212, 3285, 3630, 3796, 4015, 4290, 4356, 4380, 4719, 4745, 4818, 5148, 5445, 5694, 6292, 6435, 6570, 7227, 7260, 7865, 8030, 8541, 8580, 8833, 9438, 9490, 9636, 10439, 10890, 11388, 12045, 12870, 13140, 14157, 14235, 14454, 15730, 16060, 17082, 17666, 18876, 18980, 20878, 21780, 23595, 24090, 25740, 26499, 28314, 28470, 28908, 31317, 31460, 34164, 35332, 36135, 41756, 42705, 44165, 47190, 48180, 52195, 52998, 56628, 56940, 62634, 70785, 72270, 79497, 85410, 88330, 93951, 94380, 104390, 105996, 114829, 125268, 132495, 141570, 144540, 156585, 158994, 170820, 176660, 187902, 208780, 229658, 264990, 283140, 313170, 317988, 344487, 375804, 397485, 459316, 469755, 529980, 574145, 626340, 688974, 794970, 939510, 1033461, 1148290, 1377948, 1589940, 1722435, 1879020, 2066922, 2296580, 3444870, 4133844, 5167305, 6889740, 10334610, 20669220]

約数ペア:

[(1, 20669220), (2, 10334610), (3, 6889740), (4, 5167305), (5, 4133844), (6, 3444870), (9, 2296580), (10, 2066922), (11, 1879020), (12, 1722435), (13, 1589940), (15, 1377948), (18, 1148290), (20, 1033461), (22, 939510), (26, 794970), (30, 688974), (33, 626340), (36, 574145), (39, 529980), (44, 469755), (45, 459316), (52, 397485), (55, 375804), (60, 344487), (65, 317988), (66, 313170), (73, 283140), (78, 264990), (90, 229658), (99, 208780), (110, 187902), (117, 176660), (121, 170820), (130, 158994), (132, 156585), (143, 144540), (146, 141570), (156, 132495), (165, 125268), (180, 114829), (195, 105996), (198, 104390), (219, 94380), (220, 93951), (234, 88330), (242, 85410), (260, 79497), (286, 72270), (292, 70785), (330, 62634), (363, 56940), (365, 56628), (390, 52998), (396, 52195), (429, 48180), (438, 47190), (468, 44165), (484, 42705), (495, 41756), (572, 36135), (585, 35332), (605, 34164), (657, 31460), (660, 31317), (715, 28908), (726, 28470), (730, 28314), (780, 26499), (803, 25740), (858, 24090), (876, 23595), (949, 21780), (990, 20878), (1089, 18980), (1095, 18876), (1170, 17666), (1210, 17082), (1287, 16060), (1314, 15730), (1430, 14454), (1452, 14235), (1460, 14157), (1573, 13140), (1606, 12870), (1716, 12045), (1815, 11388), (1898, 10890), (1980, 10439), (2145, 9636), (2178, 9490), (2190, 9438), (2340, 8833), (2409, 8580), (2420, 8541), (2574, 8030), (2628, 7865), (2847, 7260), (2860, 7227), (3146, 6570), (3212, 6435), (3285, 6292), (3630, 5694), (3796, 5445), (4015, 5148), (4290, 4818), (4356, 4745), (4380, 4719)]