305648840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1603

約数の個数: 128

約数和(自身を含む): 847134720

約数和(自身を除く): 541485880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 434, 460, 620, 644, 713, 805, 868, 920, 1085, 1240, 1288, 1426, 1531, 1610, 1736, 2170, 2852, 3062, 3220, 3565, 4340, 4991, 5704, 6124, 6440, 7130, 7655, 8680, 9982, 10717, 12248, 14260, 15310, 19964, 21434, 24955, 28520, 30620, 35213, 39928, 42868, 47461, 49910, 53585, 61240, 70426, 85736, 94922, 99820, 107170, 140852, 176065, 189844, 199640, 214340, 237305, 246491, 281704, 332227, 352130, 379688, 428680, 474610, 492982, 664454, 704260, 949220, 985964, 1091603, 1232455, 1328908, 1408520, 1661135, 1898440, 1971928, 2183206, 2464910, 2657816, 3322270, 4366412, 4929820, 5458015, 6644540, 7641221, 8732824, 9859640, 10916030, 13289080, 15282442, 21832060, 30564884, 38206105, 43664120, 61129768, 76412210, 152824420, 305648840]

約数ペア:

[(1, 305648840), (2, 152824420), (4, 76412210), (5, 61129768), (7, 43664120), (8, 38206105), (10, 30564884), (14, 21832060), (20, 15282442), (23, 13289080), (28, 10916030), (31, 9859640), (35, 8732824), (40, 7641221), (46, 6644540), (56, 5458015), (62, 4929820), (70, 4366412), (92, 3322270), (115, 2657816), (124, 2464910), (140, 2183206), (155, 1971928), (161, 1898440), (184, 1661135), (217, 1408520), (230, 1328908), (248, 1232455), (280, 1091603), (310, 985964), (322, 949220), (434, 704260), (460, 664454), (620, 492982), (644, 474610), (713, 428680), (805, 379688), (868, 352130), (920, 332227), (1085, 281704), (1240, 246491), (1288, 237305), (1426, 214340), (1531, 199640), (1610, 189844), (1736, 176065), (2170, 140852), (2852, 107170), (3062, 99820), (3220, 94922), (3565, 85736), (4340, 70426), (4991, 61240), (5704, 53585), (6124, 49910), (6440, 47461), (7130, 42868), (7655, 39928), (8680, 35213), (9982, 30620), (10717, 28520), (12248, 24955), (14260, 21434), (15310, 19964)]