393807890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 895795200

約数和(自身を除く): 501987310

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 59, 70, 71, 79, 85, 118, 119, 142, 158, 170, 238, 295, 355, 395, 413, 497, 553, 590, 595, 710, 790, 826, 994, 1003, 1106, 1190, 1207, 1343, 2006, 2065, 2414, 2485, 2686, 2765, 4130, 4189, 4661, 4970, 5015, 5530, 5609, 6035, 6715, 7021, 8378, 8449, 9322, 9401, 10030, 11218, 12070, 13430, 14042, 16898, 18802, 20945, 23305, 28045, 29323, 32627, 35105, 39263, 41890, 42245, 46610, 47005, 56090, 58646, 65254, 70210, 71213, 78526, 79237, 84490, 94010, 95353, 142426, 146615, 158474, 163135, 190706, 196315, 293230, 326270, 330931, 356065, 392630, 396185, 476765, 498491, 554659, 661862, 667471, 712130, 792370, 953530, 996982, 1109318, 1334942, 1654655, 2316517, 2492455, 2773295, 3309310, 3337355, 4633034, 4984910, 5546590, 5625827, 6674710, 11251654, 11582585, 23165170, 28129135, 39380789, 56258270, 78761578, 196903945, 393807890]

約数ペア:

[(1, 393807890), (2, 196903945), (5, 78761578), (7, 56258270), (10, 39380789), (14, 28129135), (17, 23165170), (34, 11582585), (35, 11251654), (59, 6674710), (70, 5625827), (71, 5546590), (79, 4984910), (85, 4633034), (118, 3337355), (119, 3309310), (142, 2773295), (158, 2492455), (170, 2316517), (238, 1654655), (295, 1334942), (355, 1109318), (395, 996982), (413, 953530), (497, 792370), (553, 712130), (590, 667471), (595, 661862), (710, 554659), (790, 498491), (826, 476765), (994, 396185), (1003, 392630), (1106, 356065), (1190, 330931), (1207, 326270), (1343, 293230), (2006, 196315), (2065, 190706), (2414, 163135), (2485, 158474), (2686, 146615), (2765, 142426), (4130, 95353), (4189, 94010), (4661, 84490), (4970, 79237), (5015, 78526), (5530, 71213), (5609, 70210), (6035, 65254), (6715, 58646), (7021, 56090), (8378, 47005), (8449, 46610), (9322, 42245), (9401, 41890), (10030, 39263), (11218, 35105), (12070, 32627), (13430, 29323), (14042, 28045), (16898, 23305), (18802, 20945)]