20184570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:249

約数の個数: 144

約数和(自身を含む): 64022400

約数和(自身を除く): 43837830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 49, 63, 69, 70, 90, 98, 105, 115, 126, 138, 147, 161, 199, 207, 210, 230, 245, 294, 315, 322, 345, 398, 414, 441, 483, 490, 597, 630, 690, 735, 805, 882, 966, 995, 1035, 1127, 1194, 1393, 1449, 1470, 1610, 1791, 1990, 2070, 2205, 2254, 2415, 2786, 2898, 2985, 3381, 3582, 4179, 4410, 4577, 4830, 5635, 5970, 6762, 6965, 7245, 8358, 8955, 9154, 9751, 10143, 11270, 12537, 13731, 13930, 14490, 16905, 17910, 19502, 20286, 20895, 22885, 25074, 27462, 29253, 32039, 33810, 41193, 41790, 45770, 48755, 50715, 58506, 62685, 64078, 68655, 82386, 87759, 96117, 97510, 101430, 125370, 137310, 146265, 160195, 175518, 192234, 205965, 224273, 288351, 292530, 320390, 411930, 438795, 448546, 480585, 576702, 672819, 877590, 961170, 1121365, 1345638, 1441755, 2018457, 2242730, 2883510, 3364095, 4036914, 6728190, 10092285, 20184570]

約数ペア:

[(1, 20184570), (2, 10092285), (3, 6728190), (5, 4036914), (6, 3364095), (7, 2883510), (9, 2242730), (10, 2018457), (14, 1441755), (15, 1345638), (18, 1121365), (21, 961170), (23, 877590), (30, 672819), (35, 576702), (42, 480585), (45, 448546), (46, 438795), (49, 411930), (63, 320390), (69, 292530), (70, 288351), (90, 224273), (98, 205965), (105, 192234), (115, 175518), (126, 160195), (138, 146265), (147, 137310), (161, 125370), (199, 101430), (207, 97510), (210, 96117), (230, 87759), (245, 82386), (294, 68655), (315, 64078), (322, 62685), (345, 58506), (398, 50715), (414, 48755), (441, 45770), (483, 41790), (490, 41193), (597, 33810), (630, 32039), (690, 29253), (735, 27462), (805, 25074), (882, 22885), (966, 20895), (995, 20286), (1035, 19502), (1127, 17910), (1194, 16905), (1393, 14490), (1449, 13930), (1470, 13731), (1610, 12537), (1791, 11270), (1990, 10143), (2070, 9751), (2205, 9154), (2254, 8955), (2415, 8358), (2786, 7245), (2898, 6965), (2985, 6762), (3381, 5970), (3582, 5635), (4179, 4830), (4410, 4577)]