19784700

素因数分解:

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

素因数の和:141

約数の個数: 216

約数和(自身を含む): 71089200

約数和(自身を除く): 51304500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 25, 26, 30, 36, 38, 39, 45, 50, 52, 57, 60, 65, 75, 76, 78, 89, 90, 95, 100, 114, 117, 130, 150, 156, 171, 178, 180, 190, 195, 225, 228, 234, 247, 260, 267, 285, 300, 325, 342, 356, 380, 390, 445, 450, 468, 475, 494, 534, 570, 585, 650, 684, 741, 780, 801, 855, 890, 900, 950, 975, 988, 1068, 1140, 1157, 1170, 1235, 1300, 1335, 1425, 1482, 1602, 1691, 1710, 1780, 1900, 1950, 2223, 2225, 2314, 2340, 2470, 2670, 2850, 2925, 2964, 3204, 3382, 3420, 3471, 3705, 3900, 4005, 4275, 4446, 4450, 4628, 4940, 5073, 5340, 5700, 5785, 5850, 6175, 6675, 6764, 6942, 7410, 8010, 8455, 8550, 8892, 8900, 10146, 10413, 11115, 11570, 11700, 12350, 13350, 13884, 14820, 15219, 16020, 16910, 17100, 17355, 18525, 20025, 20292, 20826, 21983, 22230, 23140, 24700, 25365, 26700, 28925, 30438, 33820, 34710, 37050, 40050, 41652, 42275, 43966, 44460, 50730, 52065, 55575, 57850, 60876, 65949, 69420, 74100, 76095, 80100, 84550, 86775, 87932, 101460, 104130, 109915, 111150, 115700, 126825, 131898, 152190, 169100, 173550, 197847, 208260, 219830, 222300, 253650, 260325, 263796, 304380, 329745, 347100, 380475, 395694, 439660, 507300, 520650, 549575, 659490, 760950, 791388, 989235, 1041300, 1099150, 1318980, 1521900, 1648725, 1978470, 2198300, 3297450, 3956940, 4946175, 6594900, 9892350, 19784700]

約数ペア:

[(1, 19784700), (2, 9892350), (3, 6594900), (4, 4946175), (5, 3956940), (6, 3297450), (9, 2198300), (10, 1978470), (12, 1648725), (13, 1521900), (15, 1318980), (18, 1099150), (19, 1041300), (20, 989235), (25, 791388), (26, 760950), (30, 659490), (36, 549575), (38, 520650), (39, 507300), (45, 439660), (50, 395694), (52, 380475), (57, 347100), (60, 329745), (65, 304380), (75, 263796), (76, 260325), (78, 253650), (89, 222300), (90, 219830), (95, 208260), (100, 197847), (114, 173550), (117, 169100), (130, 152190), (150, 131898), (156, 126825), (171, 115700), (178, 111150), (180, 109915), (190, 104130), (195, 101460), (225, 87932), (228, 86775), (234, 84550), (247, 80100), (260, 76095), (267, 74100), (285, 69420), (300, 65949), (325, 60876), (342, 57850), (356, 55575), (380, 52065), (390, 50730), (445, 44460), (450, 43966), (468, 42275), (475, 41652), (494, 40050), (534, 37050), (570, 34710), (585, 33820), (650, 30438), (684, 28925), (741, 26700), (780, 25365), (801, 24700), (855, 23140), (890, 22230), (900, 21983), (950, 20826), (975, 20292), (988, 20025), (1068, 18525), (1140, 17355), (1157, 17100), (1170, 16910), (1235, 16020), (1300, 15219), (1335, 14820), (1425, 13884), (1482, 13350), (1602, 12350), (1691, 11700), (1710, 11570), (1780, 11115), (1900, 10413), (1950, 10146), (2223, 8900), (2225, 8892), (2314, 8550), (2340, 8455), (2470, 8010), (2670, 7410), (2850, 6942), (2925, 6764), (2964, 6675), (3204, 6175), (3382, 5850), (3420, 5785), (3471, 5700), (3705, 5340), (3900, 5073), (4005, 4940), (4275, 4628), (4446, 4450)]