640042320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{16361}}^1$

素因数の和:16540

約数の個数: 80

約数和(自身を含む): 1996425792

約数和(自身を除く): 1356383472

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 163, 240, 326, 489, 652, 815, 978, 1304, 1630, 1956, 2445, 2608, 3260, 3912, 4890, 6520, 7824, 9780, 13040, 16361, 19560, 32722, 39120, 49083, 65444, 81805, 98166, 130888, 163610, 196332, 245415, 261776, 327220, 392664, 490830, 654440, 785328, 981660, 1308880, 1963320, 2666843, 3926640, 5333686, 8000529, 10667372, 13334215, 16001058, 21334744, 26668430, 32002116, 40002645, 42669488, 53336860, 64004232, 80005290, 106673720, 128008464, 160010580, 213347440, 320021160, 640042320]

約数ペア:

[(1, 640042320), (2, 320021160), (3, 213347440), (4, 160010580), (5, 128008464), (6, 106673720), (8, 80005290), (10, 64004232), (12, 53336860), (15, 42669488), (16, 40002645), (20, 32002116), (24, 26668430), (30, 21334744), (40, 16001058), (48, 13334215), (60, 10667372), (80, 8000529), (120, 5333686), (163, 3926640), (240, 2666843), (326, 1963320), (489, 1308880), (652, 981660), (815, 785328), (978, 654440), (1304, 490830), (1630, 392664), (1956, 327220), (2445, 261776), (2608, 245415), (3260, 196332), (3912, 163610), (4890, 130888), (6520, 98166), (7824, 81805), (9780, 65444), (13040, 49083), (16361, 39120), (19560, 32722)]