249073280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20483}}^1$

素因数の和:20521

約数の個数: 64

約数和(自身を含む): 626810400

約数和(自身を除く): 377737120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 20483, 40966, 81932, 102415, 163864, 204830, 327728, 389177, 409660, 655456, 778354, 819320, 1310912, 1556708, 1638640, 1945885, 2621824, 3113416, 3277280, 3891770, 6226832, 6554560, 7783540, 12453664, 13109120, 15567080, 24907328, 31134160, 49814656, 62268320, 124536640, 249073280]

約数ペア:

[(1, 249073280), (2, 124536640), (4, 62268320), (5, 49814656), (8, 31134160), (10, 24907328), (16, 15567080), (19, 13109120), (20, 12453664), (32, 7783540), (38, 6554560), (40, 6226832), (64, 3891770), (76, 3277280), (80, 3113416), (95, 2621824), (128, 1945885), (152, 1638640), (160, 1556708), (190, 1310912), (304, 819320), (320, 778354), (380, 655456), (608, 409660), (640, 389177), (760, 327728), (1216, 204830), (1520, 163864), (2432, 102415), (3040, 81932), (6080, 40966), (12160, 20483)]