30836720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 74727360

約数和(自身を除く): 43890640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 71, 80, 89, 122, 142, 178, 244, 284, 305, 355, 356, 445, 488, 568, 610, 710, 712, 890, 976, 1136, 1220, 1420, 1424, 1780, 2440, 2840, 3560, 4331, 4880, 5429, 5680, 6319, 7120, 8662, 10858, 12638, 17324, 21655, 21716, 25276, 27145, 31595, 34648, 43310, 43432, 50552, 54290, 63190, 69296, 86620, 86864, 101104, 108580, 126380, 173240, 217160, 252760, 346480, 385459, 434320, 505520, 770918, 1541836, 1927295, 3083672, 3854590, 6167344, 7709180, 15418360, 30836720]

約数ペア:

[(1, 30836720), (2, 15418360), (4, 7709180), (5, 6167344), (8, 3854590), (10, 3083672), (16, 1927295), (20, 1541836), (40, 770918), (61, 505520), (71, 434320), (80, 385459), (89, 346480), (122, 252760), (142, 217160), (178, 173240), (244, 126380), (284, 108580), (305, 101104), (355, 86864), (356, 86620), (445, 69296), (488, 63190), (568, 54290), (610, 50552), (710, 43432), (712, 43310), (890, 34648), (976, 31595), (1136, 27145), (1220, 25276), (1420, 21716), (1424, 21655), (1780, 17324), (2440, 12638), (2840, 10858), (3560, 8662), (4331, 7120), (4880, 6319), (5429, 5680)]