388378240

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^2$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 1004388390

約数和(自身を除く): 616010150

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 95, 128, 152, 160, 164, 190, 205, 304, 320, 328, 361, 380, 410, 608, 640, 656, 722, 760, 779, 820, 1216, 1312, 1444, 1520, 1558, 1640, 1681, 1805, 2432, 2624, 2888, 3040, 3116, 3280, 3362, 3610, 3895, 5248, 5776, 6080, 6232, 6560, 6724, 7220, 7790, 8405, 11552, 12160, 12464, 13120, 13448, 14440, 14801, 15580, 16810, 23104, 24928, 26240, 26896, 28880, 29602, 31160, 31939, 33620, 46208, 49856, 53792, 57760, 59204, 62320, 63878, 67240, 74005, 99712, 107584, 115520, 118408, 124640, 127756, 134480, 148010, 159695, 215168, 231040, 236816, 249280, 255512, 268960, 296020, 319390, 473632, 498560, 511024, 537920, 592040, 606841, 638780, 947264, 1022048, 1075840, 1184080, 1213682, 1277560, 1894528, 2044096, 2368160, 2427364, 2555120, 3034205, 4088192, 4736320, 4854728, 5110240, 6068410, 9472640, 9709456, 10220480, 12136820, 19418912, 20440960, 24273640, 38837824, 48547280, 77675648, 97094560, 194189120, 388378240]

約数ペア:

[(1, 388378240), (2, 194189120), (4, 97094560), (5, 77675648), (8, 48547280), (10, 38837824), (16, 24273640), (19, 20440960), (20, 19418912), (32, 12136820), (38, 10220480), (40, 9709456), (41, 9472640), (64, 6068410), (76, 5110240), (80, 4854728), (82, 4736320), (95, 4088192), (128, 3034205), (152, 2555120), (160, 2427364), (164, 2368160), (190, 2044096), (205, 1894528), (304, 1277560), (320, 1213682), (328, 1184080), (361, 1075840), (380, 1022048), (410, 947264), (608, 638780), (640, 606841), (656, 592040), (722, 537920), (760, 511024), (779, 498560), (820, 473632), (1216, 319390), (1312, 296020), (1444, 268960), (1520, 255512), (1558, 249280), (1640, 236816), (1681, 231040), (1805, 215168), (2432, 159695), (2624, 148010), (2888, 134480), (3040, 127756), (3116, 124640), (3280, 118408), (3362, 115520), (3610, 107584), (3895, 99712), (5248, 74005), (5776, 67240), (6080, 63878), (6232, 62320), (6560, 59204), (6724, 57760), (7220, 53792), (7790, 49856), (8405, 46208), (11552, 33620), (12160, 31939), (12464, 31160), (13120, 29602), (13448, 28880), (14440, 26896), (14801, 26240), (15580, 24928), (16810, 23104)]