51440220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 216

約数和(自身を含む): 179852400

約数和(自身を除く): 128412180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 89, 90, 95, 114, 117, 130, 156, 169, 171, 178, 180, 190, 195, 228, 234, 247, 260, 267, 285, 338, 342, 356, 380, 390, 445, 468, 494, 507, 534, 570, 585, 676, 684, 741, 780, 801, 845, 855, 890, 988, 1014, 1068, 1140, 1157, 1170, 1235, 1335, 1482, 1521, 1602, 1690, 1691, 1710, 1780, 2028, 2223, 2314, 2340, 2470, 2535, 2670, 2964, 3042, 3204, 3211, 3380, 3382, 3420, 3471, 3705, 4005, 4446, 4628, 4940, 5070, 5073, 5340, 5785, 6084, 6422, 6764, 6942, 7410, 7605, 8010, 8455, 8892, 9633, 10140, 10146, 10413, 11115, 11570, 12844, 13884, 14820, 15041, 15210, 15219, 16020, 16055, 16910, 17355, 19266, 20292, 20826, 21983, 22230, 23140, 25365, 28899, 30082, 30420, 30438, 32110, 33820, 34710, 38532, 41652, 43966, 44460, 45123, 48165, 50730, 52065, 57798, 60164, 60876, 64220, 65949, 69420, 75205, 76095, 87932, 90246, 96330, 101460, 104130, 109915, 115596, 131898, 135369, 144495, 150410, 152190, 180492, 192660, 197847, 208260, 219830, 225615, 263796, 270738, 285779, 288990, 300820, 304380, 329745, 395694, 439660, 451230, 541476, 571558, 577980, 659490, 676845, 791388, 857337, 902460, 989235, 1143116, 1318980, 1353690, 1428895, 1714674, 1978470, 2572011, 2707380, 2857790, 3429348, 3956940, 4286685, 5144022, 5715580, 8573370, 10288044, 12860055, 17146740, 25720110, 51440220]

約数ペア:

[(1, 51440220), (2, 25720110), (3, 17146740), (4, 12860055), (5, 10288044), (6, 8573370), (9, 5715580), (10, 5144022), (12, 4286685), (13, 3956940), (15, 3429348), (18, 2857790), (19, 2707380), (20, 2572011), (26, 1978470), (30, 1714674), (36, 1428895), (38, 1353690), (39, 1318980), (45, 1143116), (52, 989235), (57, 902460), (60, 857337), (65, 791388), (76, 676845), (78, 659490), (89, 577980), (90, 571558), (95, 541476), (114, 451230), (117, 439660), (130, 395694), (156, 329745), (169, 304380), (171, 300820), (178, 288990), (180, 285779), (190, 270738), (195, 263796), (228, 225615), (234, 219830), (247, 208260), (260, 197847), (267, 192660), (285, 180492), (338, 152190), (342, 150410), (356, 144495), (380, 135369), (390, 131898), (445, 115596), (468, 109915), (494, 104130), (507, 101460), (534, 96330), (570, 90246), (585, 87932), (676, 76095), (684, 75205), (741, 69420), (780, 65949), (801, 64220), (845, 60876), (855, 60164), (890, 57798), (988, 52065), (1014, 50730), (1068, 48165), (1140, 45123), (1157, 44460), (1170, 43966), (1235, 41652), (1335, 38532), (1482, 34710), (1521, 33820), (1602, 32110), (1690, 30438), (1691, 30420), (1710, 30082), (1780, 28899), (2028, 25365), (2223, 23140), (2314, 22230), (2340, 21983), (2470, 20826), (2535, 20292), (2670, 19266), (2964, 17355), (3042, 16910), (3204, 16055), (3211, 16020), (3380, 15219), (3382, 15210), (3420, 15041), (3471, 14820), (3705, 13884), (4005, 12844), (4446, 11570), (4628, 11115), (4940, 10413), (5070, 10146), (5073, 10140), (5340, 9633), (5785, 8892), (6084, 8455), (6422, 8010), (6764, 7605), (6942, 7410)]