885366940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{823}}^1$

素因数の和:1019

約数の個数: 72

約数和(自身を含む): 1977847200

約数和(自身を除く): 1092480260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 361, 380, 596, 722, 745, 823, 1444, 1490, 1646, 1805, 2831, 2980, 3292, 3610, 4115, 5662, 7220, 8230, 11324, 14155, 15637, 16460, 28310, 31274, 53789, 56620, 62548, 78185, 107578, 122627, 156370, 215156, 245254, 268945, 297103, 312740, 490508, 537890, 594206, 613135, 1075780, 1188412, 1226270, 1485515, 2329913, 2452540, 2971030, 4659826, 5942060, 9319652, 11649565, 23299130, 44268347, 46598260, 88536694, 177073388, 221341735, 442683470, 885366940]

約数ペア:

[(1, 885366940), (2, 442683470), (4, 221341735), (5, 177073388), (10, 88536694), (19, 46598260), (20, 44268347), (38, 23299130), (76, 11649565), (95, 9319652), (149, 5942060), (190, 4659826), (298, 2971030), (361, 2452540), (380, 2329913), (596, 1485515), (722, 1226270), (745, 1188412), (823, 1075780), (1444, 613135), (1490, 594206), (1646, 537890), (1805, 490508), (2831, 312740), (2980, 297103), (3292, 268945), (3610, 245254), (4115, 215156), (5662, 156370), (7220, 122627), (8230, 107578), (11324, 78185), (14155, 62548), (15637, 56620), (16460, 53789), (28310, 31274)]